21
by Jungnickel, Dieter
Published 1999
Springer Berlin Heidelberg

22
by Piunovskiy, A.B.
Published 1997
Springer Netherlands

23
by Udriste, C.
Published 1994
Springer Netherlands

24
by Chikrii, A.
Published 1997
Springer Netherlands

25
by Chentsov, A.G., Morina, S.I.
Published 2002
Springer Netherlands

26
Published 1992
Springer Netherlands

27
by Radó, Tibor
Published 1993
Springer Berlin Heidelberg

28
by Jarre, Florian, Stoer, Josef
Published 2004
Springer Berlin Heidelberg

35
by Rockafellar, R. Tyrrell, Wets, Roger J.-B.
Published 1998
Springer Berlin Heidelberg

36
by Fleming, Wendell
Published 1977
Springer New York

40
by Moser, Jürgen
Published 2003
Birkhäuser