00611nam a22002057a 4500 Ge_NSL 20171005110924.0 171005s1968 ua ||||| |||| 00| 0 eng d eng 621.31 Alfaro, V. de Current and fied commutators, reference frame and sum rules : preprint / V. de Alfaro and C. Rossetti. Kiev, 1968. 48 p. Bibliography: p. 45-47. ენერგეტიკა ელექტროენერგეტიკა Rossetti, C. udc BK 0 4 udc 0 0 CPL CPL GEN 2017-10-05 0 621.31 2017-303914 2017-10-05 00:00:00 2E333004 2017-10-05 BK 0 4 udc 0 0 CPL CPL 2017-10-05 0 621.31 2017-303919 2017-10-05 00:00:00 2E329980 2017-10-05 BK 155910 155908