@article{VMUMM_2015_6_a6,
     author = {S. Yu. Lipatov},
     title = {The functions that do not change types of minimal fillings},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {42--45},
     year = {2015},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2015_6_a6/}
}