61
by Ross, Kenneth A.
Published 1990
Manuscript
62
by Sevilla, Joel
Published 1985
Manuscript
63
by Suppes, Patrick
Published 1988
Manuscript
64
by Kleiman, Ariel
Published 2004
Manuscript
65
by Tofiño Peña, José Eduardo
Published 2003
Manuscript
66
by Nakos, George
Published 1999
Manuscript
67
by Noble, Ben
Published 1989
Manuscript
68
by Dowling, Edward T.
Published 1982
Manuscript
69
by Angel, Allen R.
Published 1992
Manuscript
70
by Gustafson, R. David
Published 1997
Manuscript
71
by Draper, Jean E.
Published 1984
Manuscript
72
by Goldstein, Larry J.
Published 1990
Manuscript
73
by Granero, Francisco
Published 1991
Manuscript
74
Manuscript
75
by Lang, Serge
Published 1990
Manuscript
76
by McCallum, William G.
Published 1998
Manuscript
77
by Ayres, Frank
Published 2001
Manuscript
78
by Visauta Vinacua, Bienvenido
Published 1997
Manuscript
79
by Mazón Ruíz, José M.
Published 1997
Manuscript
80
by Taylor, Howard E.
Published 1981
Manuscript