@article{IM2_1972_6_2_a3,
     author = {E. G. Shul'geifer},
     title = {Functor categories over a~variety of universal algebras},
     journal = {Izvestiya. Mathematics },
     pages = {381--394},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1972},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1972_6_2_a3/}
}