@article{DAN_1975_220_3_a0,
     author = {A. G. Vainshtein and V. A. Efremovich and \`E. A. Loginov},
     title = {Infinity in geodesic spaces},
     journal = {Doklady Akademii Nauk},
     pages = {505--508},
     publisher = {mathdoc},
     volume = {220},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_220_3_a0/}
}