@article{AL_2017_56_3_a5,
     author = {L. L. Maksimova},
     title = {Recognizable and perceptible logics and varieties},
     journal = {Algebra i logika},
     pages = {367--374},
     year = {2017},
     volume = {56},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2017_56_3_a5/}
}