01011nam2-2200337li-450-9900002291502033160022915USA010022915(ALEPH)000022915USA01002291520001109d1994----km-y0itay0103----baengUSUnsolved problems in intuitive mathematicsRichard K. Guy2nd edNew York [etc.]Springer-Verlag,copyr. 1994v.ill.24 cmProblem books in mathematics0altro genere00100229142001Problem books in mathematicsteoria dei numeri5127Teoria dei numeriGuy,Richard K.Sistema bibliotecario di Ateneo dell' Università di SalernoRICA990000229150203316BK1995110220001110USA01171420020403USA011631PATRY9020040406USA011616UNISA