K.S. Thorne, "A Voyage Among the Holes", Grand Street, 48, 149-180 (1994); revised, English version of Ref. 30 above; extracted from the prologue of Black Holes and Time Warps: Einstein's Outrageous Legacy (Norton, New York, 1994).
K.S. Thorne, Russian-language versions of selected chapters from Black Holes and Time Warps: Einstein's Outrageous Legacy, translated by M. L. Gorodetsky: "Cheorniye Diri i Iscrivleniye Vremeni: Derzkoe Naslediye Einshteina," Priroda: "Glava 4, Zagadka Belikh Karlikov, " January 1994 issue, pp. 90-102; "Glava 5, Skhlopivaniye Neizbezhno," Part One, February 1994 issue, pp. 78-89, and Part Two, May 1994 issue, pp. 75-82; "Glava 6, Skhlopivaetsa, no vo shto," Part One, July 1994 issue, pp. 92-106, and Part Two, "Rozhdeniye chornikh dir: vse bolee glubokoye ponimaniye," August 1994, pp. 86-99; "Glava 8, Poisk," September 1994, pp. 96-109.