@article{10_4064_fm_88_1_1_6,
     author = {Kiiti Morita},
     title = {On generalizations of {Borsuk's} homotopy extension theorem},
     journal = {Fundamenta Mathematicae},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {88},
     number = {1},
     year = {1975},
     doi = {10.4064/fm-88-1-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-88-1-1-6/}
}