41
Published 2002
Springer Netherlands

42
Published 2001
Springer Netherlands

43
by Gavrilov, G. P., Sapozhenko, A. A.
Published 1996
Springer Netherlands

44
by Czelakowski, Janusz
Published 2001
Springer Netherlands

46
by Themaat, W. A. Verloren Van
Published 1967
Springer Netherlands

47
by Bojanov, B. D., Hakopian, H. A., Sahakian, A. A.
Published 1993
Springer Netherlands

48
Published 1998
Springer US

49
by Słowiński, Roman
Published 1998
Springer US

50
Published 1998
Springer US

51
by Höhle, Ulrich, Rodabaugh, S.E.
Published 1999
Springer US

52
Published 2000
Springer US

53
by Novák, Vilém, Perfilieva, Irina, Močkoř, Jiří
Published 1999
Springer US

54
Published 1999
Springer US

55
by Levin, Mark Sh
Published 1998
Springer US

56
by Rice, J. R.
Published 1988
Springer New York

57
by Zahar, R. V. M.
Published 1994
Birkhäuser Boston

58
by König, Dénes
Published 1990
Birkhäuser Boston

59
by Kung, Joseph P. S.
Published 1986
Birkhäuser Boston

60
by Ebbinghaus, H.-D., Flum, J., Thomas, W.
Published 1994
Springer New York