@article{10_4064_fm_88_3_241_247,
     author = {R. Sher},
     title = {A theory of absolute proper retracts},
     journal = {Fundamenta Mathematicae},
     pages = {241--247},
     publisher = {mathdoc},
     volume = {88},
     number = {3},
     year = {1975},
     doi = {10.4064/fm-88-3-241-247},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-88-3-241-247/}
}