@article{AL_1980_19_6_a5,
     author = {T. G. Mustafin},
     title = {Theories with a two-cardinal formula},
     journal = {Algebra i logika},
     pages = {676--682},
     publisher = {mathdoc},
     volume = {19},
     number = {6},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1980_19_6_a5/}
}