61
by Halmos, Paul R.
Published 1974
Springer New York

62
by Petry, Frederick E.
Published 1996
Springer US

63
by Pedrycz, Witold
Published 1996
Springer US

64
Published 1996
Springer US

65
Published 1995
Springer US

66
by Wang, Paul P.
Published 1983
Springer US

67
by Henle, James M.
Published 1986
Springer New York

68
by Gårding, Lars, Tambour, Torbjörn
Published 1988
Springer US

69
by Malitz, Jerome
Published 1979
Springer US

70
by Moore, Gregory H.
Published 1982
Springer New York

71
by Foulds, L. R.
Published 1984
Springer New York

72
by Bělohlávek, Radim
Published 2002
Springer US

73
by Cooper, S. Barry, Goncharov, Sergey S.
Published 2003
Springer US

74
by Kisačanin, Branislav
Published 2002
Springer US

75
by Mints, Grigori
Published 2000
Springer US

76
by Skordev, Dimiter G.
Published 1987
Springer US

77
by Cai, Kai-Yuan
Published 1996
Springer US

78
by Sebastian, Hans-Jürgen
Published 1996
Springer US

79
by George, Alan
Published 1993
Springer New York

80
by Smoryński, C.
Published 1985
Springer New York