@article{TIMB_2015_23_2_a5,
     author = {P. P. Zabreiko},
     title = {Mathematical theory of geometric {Koopmans} model},
     journal = {Trudy Instituta matematiki},
     pages = {43--55},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2015_23_2_a5/}
}