@article{DAN_1967_176_2_a9,
     author = {D. B. Fuchs},
     title = {Some remarks on the duality of functors in the category of abelian groups},
     journal = {Doklady Akademii Nauk},
     pages = {273--276},
     publisher = {mathdoc},
     volume = {176},
     number = {2},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_2_a9/}
}