@article{Lewin, author = {Lewin, K.}, title = {Comments Concerning Psychological Forces and Energies, and the Structure of the Psyche}, series = {D. Rapaport (Ed.), Organization and Pathology of Thought. Selected Sources, New York and London (Columbia University Press) 1951, pp. 76-94.}, journal = {D. Rapaport (Ed.), Organization and Pathology of Thought. Selected Sources, New York and London (Columbia University Press) 1951, pp. 76-94.}, language = {en} } @article{Lewin, author = {Lewin, K.}, title = {Intention, Will and Need}, series = {D. Rapaport (Ed.), Organization and Pathology of Thought. Selected Sources, New York and London (Columbia University Press) 1951, pp. 95-153.}, journal = {D. Rapaport (Ed.), Organization and Pathology of Thought. Selected Sources, New York and London (Columbia University Press) 1951, pp. 95-153.}, language = {en} }