@article{10_4064_fm_89_3_261_263,
     author = {P. Doyle},
     title = {A topological collapse number for all spaces},
     journal = {Fundamenta Mathematicae},
     pages = {261--263},
     publisher = {mathdoc},
     volume = {89},
     number = {3},
     year = {1975},
     doi = {10.4064/fm-89-3-261-263},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-89-3-261-263/}
}