Kovács, G., Gulácsi, Z.: On the exact ground states of quadrilateral chains. In: International Conference Smart functional materials for shaping our future, 19-20 September 2014 Debrecen, Hungary. Programme and book of abstracts. Ed.: Attila Csík, University of Debrecen, Debrecen, 130-131, 2014. ISBN: 9789634737247
Kovács, G., Gulácsi, Z.: On the exact ground states of quadrilateral chains. In: International Conference Smart functional materials for shaping our future, 19-20 September 2014 Debrecen, Hungary. Programme and book of abstracts. Ed.: Attila Csík, University of Debrecen, Debrecen, 130-131, 2014. ISBN: 9789634737247
Trencsényi, R., Kovács, E., Gulácsi, Z.: Exact ground states in hexagon chains. In: XXIII. microCAD International Scientific Conference 19-20 March 2009. Szerk.: Lehoczky László, Miskolci Egyetem Innovációs és Technológia Transzfer Centruma, Miskolc, 57-62, 2009. ISBN: 9789636618834