01043nam2-2200349li-450-99000323181020331620090429161702.0000323181USA01000323181(ALEPH)000323181USA0100032318120090429d1981----km-y0itay50------ba20001109d1994----km-y0itay0103----baengUS||||||||001yy<<Vol. 1:>> Unsolved problems in number theoryRichard K. GuyNew York [etc.]Springercopyr. 1981XVIII, 161 p.23 cm2001200100100239122001Unsolved problems in intuitive mathematicsTeoria dei numeri512.7GUY,Richard K.47477ITAsalbcISBD990003231810203316510 UPI/1 (A)7692/CBS51000218503BKSCIRSIAV79020090429USA011617Unsolved problems in number theory81813UNISA