@article{AL_2006_45_6_a4,
     author = {O. V. Zeeval'd},
     title = {Fuzzy logics with modalities},
     journal = {Algebra i logika},
     pages = {731--757},
     year = {2006},
     volume = {45},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2006_45_6_a4/}
}