000 00350nam a22001331i 4500
001 16507
090 _916507
_a16507
100 _a20160923 |||y0rusy50
101 _aeng
200 1 _aPotential principle
_fCole, E.L.
210 _as. l.
_cs. n.
676 _a242
700 _aCole, E.L.
942 _cBOOK
_h242
_vCOL.P
_m/1//1
_j242 COL.P /1//1