Hardy, G.H..
Introduction to the Theory of Numbers / - Fourth Ed. / - London W.1 : Oxford University Press , 1988 - p.421,xvii :
0-19-442319-0
B13 / K0;2
Introduction to the Theory of Numbers / - Fourth Ed. / - London W.1 : Oxford University Press , 1988 - p.421,xvii :
0-19-442319-0
B13 / K0;2