@article{TMF_1973_17_2_a11,
     author = {A. S. Kondrat'ev and A. E. Kuchma},
     title = {Generalized quantum kinetic equations for systems in external fields},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {241--249},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1973_17_2_a11/}
}