Zoller, K., Petras, Y.:
Teachers as Learners - Concepts of Teacher Professional Development.
In: Current Research in the Field of Disciplinary Didactics / szerk Gabriella Pusztai, Zoltán Tóth, Ildikó Csépes, Hungarian Educational Research Association, Budapest, 128-141, 2012, (Hungarian Educational Research Journal : Special Issues 2.) ISBN: 9789630850636