Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1979_26_3_a12, author = {B. A. Efimov and S. F. Tsvid}, title = {Contractions onto connected spaces}, journal = {Matemati\v{c}eskie zametki}, pages = {435--447}, publisher = {mathdoc}, volume = {26}, number = {3}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1979_26_3_a12/} }
B. A. Efimov; S. F. Tsvid. Contractions onto connected spaces. Matematičeskie zametki, Tome 26 (1979) no. 3, pp. 435-447. http://geodesic.mathdoc.fr/item/MZM_1979_26_3_a12/