@article{MZM_1967_2_6_a11,
     author = {V. V. Glagolev},
     title = {The length of a dead end disjunctive normal form},
     journal = {Matemati\v{c}eskie zametki},
     pages = {665--672},
     year = {1967},
     volume = {2},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1967_2_6_a11/}
}