@article{FPM_2004_10_4_a10,
     author = {A. G. Pinus},
     title = {On the implicit conditional operations defined on pseudouniversal classes},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {171--182},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2004_10_4_a10/}
}