@article{AL_1991_30_3_a0,
     author = {A. I. Generalov},
     title = {Algebraically compact modules and relative homological algebra
},
     journal = {Algebra i logika},
     pages = {259--292},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1991_30_3_a0/}
}