81
by Brainard, Harry G.
Published 1954
82
by Lipson, Charles
Published 1985
83
by Thomas, Janet
Published 2000
84
Published 2001
85
by Burstein, Daniel
Published 1991
86
by Cammack, Paul
Published 1988
87
Published 1992
88
by Verghese, B. G.
Published 2001
89
Published 2002
90
Published 2001
91
Published 2000
92
by Khor Kok Peng, Martin
Published 1992
93
Published 1991
94
Published 1993
95
Published 1993
96
by Cohen, Stephen D.
Published 1996
97
by Zhen, Quan Wang
Published 1995
98
by Luttwak, Edward N.
Published 1993
99
by Krueger, Anne O.
Published 1995
100
Published 1995