Não informado. (1991). Applications of Mathematics. Czechoslovak Academy of Sciences.
Chicago-referens (17:e uppl.)Não informado. Applications of Mathematics. Praha: Czechoslovak Academy of Sciences, 1991.
MLA-referens (8:e uppl.)Não informado. Applications of Mathematics. Czechoslovak Academy of Sciences, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.