000 00371nam a2200121Ia 4500
001 MPKV051860
008 120911s9999 xx 000 0 und d
082 _a515
245 _aProceedings of the Royal Society of London Vol 181
_c;
246 _aProceedings of the Royal Society of London Vol 181
260 _aLondon
_bRoyal Society of London
_c1972
650 _aMathematics
999 _c49862
_d49862