@article{FPM_2014_19_3_a1,
     author = {E. Aladova and A. Gvaramia and B. Plotkin and T. Plotkin},
     title = {Multi-sorted logic, models, and logical geometry},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {5--22},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2014_19_3_a1/}
}