000 00296nam a22001217a 4500
082 _a541.224 DMI
100 _aDmitriev,I.S
245 _aMolecules Without Chemical Bonds :essays on chemical topology
260 _aMoscow
_bMir
_c1980
300 _a155p
650 _amolecules ,chemical
942 _cBK
999 _c986
_d986