@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/}
}