61
Published 1980
62
Published 1977
63
64
65
Published 1993
66
67
Published 1982
68
69
Published 2000
70
71
Published 1998
72
Published 1990
73
74
Published 1990
75
Published 1994
76
Published 1991
77
by Simai, Mihaly
Published 1995
78
Published 1975
79
Published 1997
80