Wide components in double and multiple stars proceedings of the 97th Colloquium of the International Astronomical Union, held in Brussels, Belgium, 8-13 June, 1987 por Dommanget, J. (edited), Dessel, E. L. van (Edwin Ludo), 1943-, Kopal, Zdeněk, 1914-1993

Numerical analysis, with emphasis on the application of numerical techniques to problems of infinitesimal calculus in single variable. por Kopal, Zdenek 1914-