000 00474nam a2200169Ia 4500
003 LDD
008 181029s9999 xx 000 0 und d
020 _a387975063
040 _cLDD
100 _aCROFT, Hallard T.
245 0 _aUnsolved problems in geometry
_cHallard T. CROFT
260 _aNew York
_bSpringer-Verlag
_c1991
300 _axv, 198p.
440 _aProblem books in mathematics. Unsolved problems in intutive
901 _a585
_b02-12-1996
942 _2ddc
_cBK
999 _c49514
_d49514