Simak, Clifford. Ring Around the Sun
Summary: A whole series of parallel Earths (uninhabited) can be reached by mental means. More emphasis on mutants and androids than on crosstime aspect.
Published: Musson 1953; SFBC 1953; Ace 1954; World 1960; Avon 1967; Four Square 1967; New English Library 1977; Mandarin 1990 (0749303530); and Carroll & Graf 1992 (0881848522).
Original in: English.
Translation: German by Heinz Zwack as Schluessel zur anderen Welt, Zimmermann 1962; Möwig 1964.
Translation: Portuguese by Eurico Fonseca as Mundos Simultaneos, Livros do Brasil 1960.