4
Published 1974
Book
5
Book
6
by Luzsa, György, 1929-2011
Published 1972
Book
7
by Wille-Baumkauff, Horst
Published 1950
Book
9
Book
10
12
Published 1993
Book
13
by Morse, Peter H., 1935-
Published 1989
Book
14
by Němec, Petr, 1954-
Published 1983
Thesis Manuscript
16
by Vargha, Gy.
Published 1981
Book
17
Published 1981
Book