@article{VMJ_2004_6_3_a4,
     author = {A. E. Gutman and D. S. Feofanov},
     title = {Description of the principal components generated by operators that preserve disjunction},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {26--35},
     year = {2004},
     volume = {6},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2004_6_3_a4/}
}