@article{MAT_1972_16_2_a1,
     author = {M. C. Bunge},
     title = {Relative functor categories and categories of algebras},
     journal = {Matematika},
     pages = {11--46},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1972_16_2_a1/}
}