21
by Lotka, Alfred J.
Published 1998
Springer US

23
by Schoen, Robert
Published 1988
Springer US

24
by Kirchhoff, Peter
Published 2002
Vieweg+Teubner Verlag

28
Published 1993
Springer Berlin Heidelberg

29
Published 1991
Springer Berlin Heidelberg

32
Published 2003
Springer Berlin Heidelberg

33
Published 1992
Physica

40
by Wit, Gerrit de
Published 1993
Physica