@article{10_4064_fm_86_3_261_270,
     author = {Karol Borsuk},
     title = {On fundamental deformation retracts and on some related notions},
     journal = {Fundamenta Mathematicae},
     pages = {261--270},
     publisher = {mathdoc},
     volume = {86},
     number = {3},
     year = {1974},
     doi = {10.4064/fm-86-3-261-270},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-86-3-261-270/}
}