1. Aspects of Ramsey-Theory 1
:PRÖMEL, Hans Jürgen - VOIGT, Bernd. Aspects of Ramsey-Theory 1 : Sets. 1. ed. Bonn : Inst. f. Ökonometrie und Operations Research, 1989. 123 s. Report, No.87495 - OR. [Copy count : 1, currently available 1, at library only 0]