* Grundfragen der Intensitatspsychologie, 1922;
Das Problem des Empfindens und die Methoden seiner experimentellen Prufung, ”Z. Psychol.“, 1930, 114;
Patology of figure–background relation in the child (совм. с Strauss A.A.), ”J. Of Abnormal and Social Psychol.“, 1941, 36;
Sensory–tonic field theory of perception (совм. с Wapner S.), ”J. Personality“., 1949, 18;
The concept of development from a comparative and organismic point of view, in: Harris D.B.(Ed.), The Concept of Development, Minneapolis, 1957;
Symbol Formation, 1963 (совм. с B. Kaplan).