@article{RM_1978_33_2_a7,
     author = {Yu. M. Berezanskii and N. N. Bogolyubov and Yu. L. Daletskii and M. A. Lavrent'ev and E. M. Semenov},
     title = {Selim {Grigor'evich} {Krein} (on his sixtieth birthday)},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {215--225},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1978_33_2_a7/}
}