@article{DAN_1982_265_5_a8,
     author = {A. G. Kusraev and S. S. Kutateladze},
     title = {Analysis of subdifferentials with the aid of {Boolean-valued} models},
     journal = {Doklady Akademii Nauk},
     pages = {1061--1064},
     publisher = {mathdoc},
     volume = {265},
     number = {5},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_265_5_a8/}
}