==Publications==He has written several popular books:* Black Holes and the Universe, (translated by Vitaly I. Kisin, Cambridge University Press 1995)* The River of Time, (translated by Vitaly I. Kisin, Cambridge University Press 1998, 2001)* Il ritmo del tempo, Di Renzo Editore, Roma, 2006He has authored or co-authored 15 books on cosmology and astrophysics, and wrote, with Alexander S. Sharov, a biography of Edwin Hubble, "E. Hubble, Life and Work" (Cambridge University Press 1992).
# (Black Holes and the Universe, translated by Vitaly I. Kisin, Cambridge University Press 1995)# (The River of Time, translated by Vitaly I. Kisin, Cambridge University Press 1998, 2001; Il ritmo del tempo, Di Renzo Editore, Roma, 2006)* Личная страница в Theoretical Astrophysics Center.