@book{Spitz, author = {Spitz, Ren{\´e} A.}, title = {Nein und Ja, Stuttgart (Ernst Klett Verlag) 1957.}, language = {de} } @book{Spitz, author = {Spitz, Ren{\´e} A.}, title = {The first year of life. A Psychoanalytic Study of Normal and Deviant Development of Object Relations, New York (International Universities Press) 1965.}, language = {en} } @book{Spitz, author = {Spitz, Ren{\´e} A.}, title = {Vom S{\"a}ugling zum Kleinkind. Unter Mitarbeit von Godfrey Cobliner, Stuttgart (Klett-Cotty), 1980, 403 pp.}, language = {de} } @book{Spitz, author = {Spitz, Ren{\´e} A.}, title = {Vom Dialog. Studien {\"u}ber den Ursprung der menschlichen Kommunikation und ihrer Rolle in der Pers{\"o}nlichkeitsbildung, M{\"u}nchen (dtv), 1988, 111 pp.}, language = {de} }