@article{SM_1980_36_2_a3,
     author = {A. Yu. Volovikov},
     title = {A~generalization of the {Borsuk{\textendash}Ulam} theorem},
     journal = {Sbornik. Mathematics},
     pages = {195--202},
     year = {1980},
     volume = {36},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1980_36_2_a3/}
}