$1!@B'An!=x!KH':`!4x!KH(B:s = Principles of topological psychology - Lewin, Kurt; $1'<v'JE!JY !42-HEs; $1!a\'X0!BSs ($1!4I!0a!+:s $1!6F'43!4l'CU'`y(B,s, 2017)
Translation of: Principles of topological psychology.
Keywords: Gestalt psychology