@article{VTAMU_2020_25_130_a5,
     author = {R. A. Khachatryan},
     title = {The conditions of minimum for a smooth function on the boundary of a quasidifferntiable set},
     journal = {Vestnik rossijskih universitetov. Matematika},
     pages = {165--182},
     year = {2020},
     volume = {25},
     number = {130},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTAMU_2020_25_130_a5/}
}