21
by Grimes, Dale Mills
Published 2005
World Scientific

22
by Elze, Hans-Thomas
Published 2004
Springer Berlin Heidelberg

23
by Ripka, Georges
Published 2004
Springer Berlin Heidelberg

24
by Blaschke, David
Published 2004
Springer Berlin Heidelberg

25
by Karshenboim, Savely G
Published 2004
Springer Berlin Heidelberg

26
by Meißner, U-G
Published 2004
Springer Berlin Heidelberg

27
by Paris, Matteo
Published 2004
Springer Berlin Heidelberg