@article{VUU_2014_3_a8,
     author = {A. G. Chentsov},
     title = {To the validity of constraints in the class of generalized elements},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {90--109},
     publisher = {mathdoc},
     number = {3},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2014_3_a8/}
}