@book{BlanckBlanck, author = {Blanck, R. and Blanck, G.}, title = {Ego Psychology. Theory and Practice. New York (Columbia) 1974.}, language = {en} } @book{BlanckBlanck, author = {Blanck, R. and Blanck, G.}, title = {Marriage and Personal Development. New York (Columbia) 1968.}, language = {en} }