Wheeler and Remo Ruffini, "Black Holes, Gravitational Waves and Cosmology", Gordon & Breach (1974)*H. Sato and R. Ruffini, "Black Holes", Tokyo (1976)*L.Z.
Black Holes, Gravitational Waves and Cosmology, Gordon and Breach N.Y. 1974 - переведена на русский язык как*H. Sato and R. Ruffini.