TY - SER AU - S Bajtlik C2 - Kluwer , Dordrecht, DA - 1993-01-01 LA - en PB - Kluwer , Dordrecht, PY - 1993 TI - The evolution of the intergalactic medium and Ly-alpha clouds: Comparison of theories and observations, ed. by J.M. Shull and H.A. Thronson ER -