Balla, T., Tóth, R., Bodroginé Zichar, M., Hoffmann, M.: Multimodal Approach of Improving Spatial Abilities.
MTI. 8 (11), 1-12, 2024.

Kruppa, K., Kunkli, R., Hoffmann, M.: A skinning technique for modeling artistic disk B-spline shapes.
Comput. Graph.-UK. 115 96-106, 2023.

Tóth, R., Hoffmann, M., Bodroginé Zichar, M.: Lossless Encoding of Mental Cutting Test Scenarios for Efficient Development of Spatial Skills.
Educ. Sci. 13 (2), 1-21, 2023.

Tóth, R., Hoffmann, M., Bodroginé Zichar, M.: viSkillz - a project dealing with Mental Cutting Test exercises.
In: ICAI 2023 - 12th International Conference on Applied Informatics, Eszterházy Károly Egyetem, Eger, 1-2, 2023.

Tóth, R., Tóth, B., Hoffmann, M., Bodroginé Zichar, M.: viskillz-blender - A Python package to generate assets of Mental Cutting Test exercises using Blender.
SoftwareX. 22 1-6, 2023.

Hoffmann, M., Juhász, I., Troll, E.: Caustics of developable surfaces.
Front. Inform. Technol. Elect. Eng. 23 (3), 479-487, 2022.

Tóth, R., Tóth, B., Bodroginé Zichar, M., Fazekas, A., Hoffmann, M.: Detecting and Correcting Errors in Mental Cutting Test Intersections Computed with Blender.
In: ICGG 2022 - Proceedings of the 20th International Conference on Geometry and Graphics / Liang-Yee Cheng, Springer, Cham, 904-916, 2022. ISBN: 9783031135873

Tóth, R., Tóth, B., Bodroginé Zichar, M., Fazekas, A., Hoffmann, M.: Educational Applications to Support the Teaching and Learning of Mental Cutting Test Exercises.
In: ICGG 2022 - Proceedings of the 20th International Conference on Geometry and Graphics / Liang-Yee Cheng, Springer, Cham, 928-938, 2022. ISBN: 9783031135873

Papp, G., Hoffmann, M., Papp, I.: Embedding QR Code onto Triangulated Meshes using Horizon Based Ambient Occlusion.
Comput. Graph. Forum. 41 (1), 29-45, 2022.

Nagy, F., Yoshida, N., Hoffmann, M.: Interactive G1 and G2 Hermite Interpolation Using Coupled Log-aesthetic Curves.
Comput Aided Des Appl. 19 (6), 1216-1235, 2022.

Hoffmann, M.: The Ontological Role of Applied Mathematics in Virtual Worlds.
Philosophies. 7 (1), 1-10, 2022.

Hoffmann, M., Egri-Nagy, A.: A New Model of Mathematics Education: Flat Curriculum with Self-Contained Micro Topics.
Philosophies. 6 (3), 1-11, 2021.

Kiss-György, R., Hoffmann, M.: Artworks as illustrations in Hungarian high school Mathematics textbooks.
Teach. math. comput. sci. 19 (1), 103-117, 2021.

Papp, G., Hoffmann, M., Papp, I.: Improved Embedding of QR Codes onto Surfaces to be 3D Printed.
Comput.-Aided Des. 131 1-10, 2021.

Tóth, R., Bodroginé Zichar, M., Hoffmann, M.: Improving and Measuring Spatial Skills with Augmented Reality and Gamification.
In: ICGG 2020 - Proceedings of the 19th International Conference on Geometry and Graphics / Liang-Yee Cheng, Springer, Cham, 755-764, 2021. ISBN: 9783030634025

Nagy, F., Yoshida, N., Hoffmann, M.: Interactive G1 and G2 Hermite Interpolation Using Coupled Log-aesthetic Curves.
In: Proceedings of CAD'21. Ed.: Roberto Raffaeli, Les Piegl, CAD Solutions LLC, Barcelona, 329-333, 2021, (ISSN 2769-8440)

Hoffmann, M., Németh, L.: Is It a Cube? Common Visual Perception of Cuboid Drawings.
Educ. Sci. 11 (10), 1-17, 2021.

Kruppa, K., Kunkli, R., Hoffmann, M.: Possibilities and Advantages of Rational Envelope and Minkowski Pythagorean Hodograph Curves for Circle Skinning.
Mathematics. 9 (8), 1-13, 2021.

Berta, T., Hoffmann, M.: Cooperative learning methods in mathematics education: 1.5 year experience from teachers' perspective.
Ann. Math. Inform. 52 269-279, 2020.

Papp, G., Hoffmann, M., Papp, I.: Embedding QR code onto triangulated meshes.
In: The 12th Conference of PhD Students in Computer Science : Volume of short papers, University of Szeged, Institute of Informatics, Szeged, 79-82, 2020.

Tóth, R., Bodroginé Zichar, M., Hoffmann, M.: Gamified Mental Cutting Test for enhancing spatial skills.
In: 11th IEEE International Conference on Cognitive Infocommunications (CogInfoCom 2020) / Institute of Electrical and Electronics Engineers (IEEE), IEEE, New York, 299-304, 2020. ISBN: 9781728182148

Papp, G., Hoffmann, M., Papp, I.: Improved QR code embedding for meshes with 3D printing.
In: The 11th International Conference on Applied Informatics (ICAI 2020). Ed.: Fazekas István, Kovásznai Gergely, Eszterházy Károly Egyetem, Eger, 1-2, 2020.

Tóth, R., Hoffmann, M., Kósa, M., Bodroginé Zichar, M.: Motivating students' study with ICT.
In: The 11th International Conference on Applied Informatics (ICAI 2020). Ed.: Fazekas István, Kovásznai Gergely, Eszterházy Károly Egyetem, Eger, 1, 2020.

Kruppa, K., Kunkli, R., Hoffmann, M.: An improved skinning algorithm for circles and spheres providing smooth transitions.
Graph. Models. 101 27-37, 2019.

Kruppa, K., Kunkli, R., Hoffmann, M.: Geometric Aspects of Rational Envelopes.
In: Conference on Geometry : Theory and Applications : Program and Abstracts / Hans-Peter Schröcker, University of Innsbruck, Innsbruck, 34-35, 2019.

Papp, G., Hoffmann, M., Papp, I.: Improved projection for embedding QR code onto surfaces to be 3D printed.
In: Graphics and Application The 12th Asian Forum on Graphic Science (AFGS 2019). Ed.: Baoling Han, Xiao Luo, Hongliang Fan, China Graphics Society, Kunming, 116-117, 2019.

Tóth, R., Hoffmann, M., Kósa, M., Bodroginé Zichar, M.: Játékosított alkalmazások a programozási ismeretek és a térlátási képességek fejlesztésére.
In: A 16 éves PEME XIX. PhD - Konferenciájának előadásai. Szerk.: Koncz István, Szova Ilona, Professzorok az Európai Magyarországért Egyesület, Budapest, 358-365, 2019. ISBN: 9786155709098

Nagy, F., Kunkli, R., Hoffmann, M.: Algorithms to find isoptic surfaces of polyhedral meshes.
In: 5th Winter School of PhD Students in Informatics and Mathematics. Ed.: Hudoba Péter, Doktoranduszok Országos Szövetsége, Budapest, 36, 2018. ISBN: 9786155586231

Kruppa, K., Kunkli, R., Hoffmann, M.: A new skinning method for dynamic modeling.
In: 5th Winter School of PhD Students in Informatics and Mathematics. Ed.: Hudoba Péter, Doktoranduszok Országos Szövetsége, Budapest, 28-29, 2018. ISBN: 9786155586231

Kruppa, K., Kunkli, R., Hoffmann, M.: A skinning algorithm for branched systems of circles and spheres.
In: IX. Magyar Számítógépes Grafika és Geometria Konferencia. Szerk.: Szirmay-Kalos László, Renner Gábor, Neumann János Számítógép-tudományi Társaság, Budapest, 31-37, 2018. ISBN: 9789633132821

Nagy, F., Kunkli, R., Hoffmann, M.: New algorithm to find isoptic surfaces of polyhedral meshes.
Comput. Aided Geom. Des. 64 90-99, 2018.

Kruppa, K., Kunkli, R., Hoffmann, M.: An extension to circle and sphere skinning algorithms.
In: Conference on Geometry: Theory and Applications 2017. Book of abstracts. Ed.: M. Lávička, Vydavatelsky servis, Pilsen, 45, 2017. ISBN: 9788086843568

Kruppa, K., Kunkli, R., Hoffmann, M.: Combining and extending the features of circle skinning algorithms.

Nagy, F., Kunkli, R., Hoffmann, M.: Improved algorithm to find isoptic surface for three-dimensional objects.
In: ICAI 2017: 10th International Conference on Applied Informatics, Eszterházy Károly Egyetem, Eger, 1, 2017.

Nagy, F., Kunkli, R., Hoffmann, M.: New algorithms to find isoptic surfaces for three-dimensional objects.
In: Conference on Geometry: Theory and Applications 2017. Book of abstracts. Ed.: M. Lávička, Vydavatelsky servis, Pilsen, 58, 2017. ISBN: 9788086843568

Nagy, F., Kunkli, R., Hoffmann, M.: Isoptics - Camera orbit around convex meshes.
In: VIII. Magyar Számítógépes Grafika és Geometria Konferencia. Szerk.: Szirmay-Kalos László, Renner Gábor, Neumann János Számítógép-tudományi Társaság, Budapest, 48-52, 2016. ISBN: 9786155036118

Hoffmann, M., Kunkli, R.: Isoptics of spline and subdivision curves and surfaces.
In: Conference on Geometry: Theory and Applications CGTA 2015 Booklet of Abstracts. Eds.: Bert Jüttler, Otto Röschel, Hans-Peter Schröcker, JKU Linz, Institute of Applied Geometry, Linz, 13, 2015.

Kruppa, K., Bana, K., Kunkli, R., Hoffmann, M.: Creating connection between skinning surfaces.
In: VII. Magyar Számítógépes Grafika és Geometria Konferencia, Budapest, 2014. február 19-20.. Szerk.: Szirmay-Kalos László, Renner Gábor, Neumann János Számítógép-tudományi Társaság, Budapest, 46-51, 2014. ISBN: 9786155036088

Bana, K., Kruppa, K., Kunkli, R., Hoffmann, M.: KSpheres: an efficient algorithm for joining skinning surfaces.
Comput. Aided Geom. Des. 31 (7-8), 499-509, 2014.

Papp, I., Kunkli, R., Hoffmann, M.: Optimization of Skinning of Circles.

Nagy, F., Kunkli, R., Hoffmann, M.: A fast algorithm for finding special isoptic curve of Bézier surfaces.
In: 17th Scientific-Professional Colloquium on Geometry and Graphic : Abstacts. Ed.: Tomislav Doslic, Ema Jurkin, Croatian Society for Geometry and Graphics, Zágráb, 23-23, 2013.

Kruppa, K., Bana, K., Kunkli, R., Hoffmann, M.: An improved method to construct intersection curves of skinning surfaces.
In: Abstracts : 17th Scientific-Professional Colloquium on Geometry and Graphics Rastoke, September 4 - 8, 2013. Eds.: Tomislav Doslic, Ema Jurkin, Croatian Society for Geometry and Graphics, Zagreb, 18, 2013.

Kunkli, R., Papp, I., Hoffmann, M.: Isoptics of Bézier curves.
Comput. Aided Geom. Des. 30 (1), 78-84, 2013.

Bana, K., Hoffmann, M., Kruppa, K., Kunkli, R.: KSpheres: an efficient algorithm for joining skinning surfaces.
In: Conference on Geometry Theory and Applications : Book of Abstracts : June 24-June 28, 2013 Ljubljana, Slovenia / B. Kovač, T. Kanduč, E. Žagar, University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, 11-12, 2013.

Hoffmann, M., Kunkli, R., Nagy, F.: Method for Optimization of Camera Movement Path Based on Isoptic Curves.
In: Conference on Geometry : Theory and Applications : Book of Abstracts. Eds.: B. Kovac, T. Kanduc, E. Zagar, University of Ljubljana, Ljubljana, 35-36, 2013.

Hoffmann, M., Kunkli, R., Papp, I.: On Optimization of Skinning of Circles.
In: Conference on Geometry : Theory and Applications : Book of Abstracts. Eds.: B. Kovac, T. Kanduc, E. Zagar, University of Ljubljana, Ljubljana, 41, 2013.

Papp, I., Hoffmann, M., Kunkli, R.: Geometric Results on Envelopes.
In: GeoGra 2012 Conference. Szerk.: Bölcskei Attila, Nagy Gyula, SZIE Ybl Miklós Építéstudományi Kar Ábrázolás és Számítástechnika Tanszéke, Budapest, 30, 2012. ISBN: 9789630831611

Papp, I., Kunkli, R., Hoffmann, M.: Iso-Optics of Bézier Curves.
In: GeoGra 2012 Conference. Szerk.: Bölcskei Attila, Nagy Gyula, SZIE Ybl Miklós Építéstudományi Kar Ábrázolás és Számítástechnika Tanszéke, Budapest, 23, 2012. ISBN: 9789630831611

Kunkli, R., Papp, I., Hoffmann, M.: Isoptics of free-form curves.
In: Abstracts : 16th Scientific-Professional Colloquium on Geometry and Graphics. Eds.: Tomislav Doslic, Ema Jurkin, Croatian Society for Geometry and Graphics, Zágráb, 20, 2012.

Kunkli, R., Hoffmann, M.: Kör- és gömbsorozatok interpolációja.
In: VI. Magyar Számítógépes Grafika és Geometria Konferencia. Szerk.: Szirmay-Kalos László, Renner Gábor, Neumann János Számítógép-tudományi Társaság, Budapest, 145-149, 2012. ISBN: 9789633130483

Papp, I., Kunkli, R., Hoffmann, M.: Optimization of skinning of circles by energy minimization.
In: Abstracts : 16th Scientific-Professional Colloquium on Geometry and Graphics. Eds.: Tomislav Doslic, Ema Jurkin, Croatian Society for Geometry and Graphics, Zágráb, 27, 2012.

Papp, I., Hoffmann, M.: Isooptics of quadratic Bézier curves.
In: Proceedings of 11th Seminar Geometry and Computer. Ed.: Anna Bäch, Polish Society for Geometry and Engineering Graphics, Ustron, 59, 2010.

Papp, I., Hoffmann, M.: Isoptics of Bézier curves.
In: ICAI 2010 - 8th International Conference on Applied Informatics : List of abstracts. Ed.: Emőd Kovács, Eszterházy Károly Főiskola, Eger, 1, 2010.

Kunkli, R., Hoffmann, M.: Skinning of circles and spheres.
Comput. Aided Geom. Des. 27 (8), 611-621, 2010.

Sajó, L., Hoffmann, M., Fazekas, A.: A 3D head model from stereo images by a self-organizing neural network.
JGG. 13 (2), 209-220, 2009.

Papp, I., Hoffmann, M.: C2 and G2 Continuous Spline Curves with Shape Parameters.
JGG. 11 (2), 179-185, 2007.

Bácsó, S., Hoffmann, M., Eszterházy Károly Tanárképző Főiskola (Eger): Fejezetek a geometriából.
EKF Líceum K., Eger, 126 p., 2003.

Várady, L., Hoffmann, M.: Free-form surfaces for scattered data by neural networks.

Várady, L., Hoffmann, M.: Surface to scattered data by dynamic neural network.

Hoffmann, M., Várady, L.: Free-form curve design by neual networks.
Acta Acad. Paed. Agr. Sect. Math. 24 99-104, 1997.

Szabó, J., Schwarcz, T., Hoffmann, M., Sulyok, P., Ledeczky, G., Várady, L.: A komputergrafikai tantárgyak oktatási koncepciói és tantárgyi tematikái a KLTE-n.
In: Informatika a felsőoktatásban '96 ; Networkshop '96 :, Debreceni Universitas, Debrecen, 662-665, 1996.

Hoffmann, M., Várady, L., Molnár, T.: Approximation of scattered data by dynamic neural networks.

Bácsó, S., Hoffmann, M., Szabó, J., Wyzykowski, A.: Conception of the teacher's training for description geometry.
In: Proceedings of the 7th International Conference on Engineering Computer Graphics and Descriptive Geometry. vol. 2.. Ed.: by Andrzej Wyzykowski, [et al.], University of Technology, Cracow, 445-448, 1996.