A catalogue of quasars and active nuclei. Ed.4 European Southern Observatory Scientific Report. No.7- March 1989.
VERON-CETTY(M P)
A catalogue of quasars and active nuclei. Ed.4 European Southern Observatory Scientific Report. No.7- March 1989. - 4 ed. - European Southern Observatory 1989 - 143 p.
A catalogue of quasars and active nuclei. Ed.4 European Southern Observatory Scientific Report. No.7- March 1989. - 4 ed. - European Southern Observatory 1989 - 143 p.