@article{DAN_1984_276_6_a13,
     author = {I. P. Chukhrov},
     title = {The number of minimal disjunctive normal forms},
     journal = {Doklady Akademii Nauk},
     pages = {1335--1339},
     year = {1984},
     volume = {276},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_276_6_a13/}
}