found: The internal constitution of the stars, 1941.
found: His Vesmírní sousedé naší planety, 1984:t.p. (Zdeněk Kopal) jkt. (RNDr.; DrSc.)
found: IAU Colloquim (97th : 1987 : Brussels, Belgium). Wide components in double and multiple stars, 1988:CIP t.p. (Z. Kopal)
found: Astronomy for developing countries, c2001:p. v (Zdeněk Kopal (1914-1993))
found: Information from 678 converted Jan. 5, 2015(Dept. of Astronomy, U. of Manchester, Eng.)
found: Wikipedia, viewed February 19, 2015:(Zdeněk Kopal; born 4 April 1914 in Czechoslovakia; died 23 June 1993 in England; astronomer; left Czechoslovakia to attend University of Cambridge in 1938 and then worked at the University of Manchester; was Editor-in-Chief of the journal Astrophysics and Space Science since its foundation in 1968 until his death in 1993) - https://en.wikipedia.org/wiki/Zdenek_Kopal found: Vesmírní sousedé, 1987:title page (Zdeněk Kopal) dust jacket spine (Z. Kopal) page 9 (Prof. RNDr. Zdeněk Kopal, DrSc., native of Litomyšl born in 1914; left Czechoslovakia in 1938; worked at Harvard University and Massachusetts Institute of Technology in the United states, 1938-1951; head of the Department of Astronomy at the University of Manchester since 1951)
