121
by Pólya, G., Read, R. C.
Published 1987
Springer New York

122
by Gaier, Dieter
Published 1987
Birkhäuser Boston

123
by Stanton, Dennis, White, Dennis
Published 1986
Springer New York

124
Published 2002
Springer US

125
Published 2003
Springer US

126
by Du, Ding-Zhu
Published 1999
Springer US

127
by Bollobás, Béla
Published 1979
Springer New York

128
by Newborn, Monty
Published 2001
Springer New York

129
by Skordev, Dimiter G.
Published 1987
Springer US

130
by George, Alan
Published 1993
Springer New York

131
by Petry, Frederick E.
Published 1996
Springer US

133
by Wang, Ren-Hong
Published 2001
Springer Netherlands

134
by Hintikka, Jaakko
Published 1998
Springer Netherlands

135
by Trigub, Roald M., Bellinsky, Eduard S.
Published 2004
Springer Netherlands

136
by Hermes, Hans
Published 1971
Springer Berlin Heidelberg

137
by Ebbinghaus, Heinz-Dieter, Flum, Jörg
Published 1995
Springer Berlin Heidelberg

138
by Krob, Daniel
Published 2000
Springer Berlin Heidelberg

139
by Tettamanzi, Andrea, Tomassini, Marco
Published 2001
Springer Berlin Heidelberg

140
by Spencer, Joel
Published 2001
Springer Berlin Heidelberg