@article{FSSC_2018_13_1_a0,
     author = {D. A. Molodtsov},
     title = {Extremal sets of the family of intervals},
     journal = {Ne\v{c}etkie sistemy i m\^agkie vy\v{c}isleni\^a},
     pages = {5--15},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FSSC_2018_13_1_a0/}
}