@article{DAN_1974_217_3_a9,
     author = {G. M. Bartenev and A. P. Bucftikhin and V. I. Gol'danskiǐ and A. D. Tsyganov},
     title = {Positronium atom in polymers},
     journal = {Doklady Akademii Nauk},
     pages = {536--539},
     publisher = {mathdoc},
     volume = {217},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_217_3_a9/}
}