@article{SM_1976_29_2_a1,
     author = {Yu. A. Kaz'min},
     title = {A~geometric test for completeness},
     journal = {Sbornik. Mathematics},
     pages = {157--165},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1976},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1976_29_2_a1/}
}