Pseudonyms not found on published works: Peter Flint, Melchior Kurtz.
Herz auf Taille, c1928 t.p. (Erich Kästner)
Antifashizm v Germanii, 1916-1959, 1989 t.p. (Ėrikh Kestner)
Münchhausen, c2005 insert (Erich Kästner under the pseudonym of Berthold Bürger)
Kosch. W. Deutsches Lit. Lex. (Kästner, Erich; b. Feb. 23, 1899 in Dresden, d. July 29, 1974 in Munich; journalist and literary author; pseudonyms Melchior Kurtz and Robert Neuner among others)
Eymers Pseudonymen Lex., 1977 (Kästner, Erich; b. Feb. 23, 1899 in Dresden, d. July 29, 1974 in Munich; pseudonyms: Berthold Bürger, Peter Flint, Melchior Kurtz, Robert Neuner)