@article{10_4064_fm_68_1_23_29,
     author = {Warren White},
     title = {A 2-complex is collapsible if and only if it admits a strongly convex metric},
     journal = {Fundamenta Mathematicae},
     pages = {23--29},
     publisher = {mathdoc},
     volume = {68},
     number = {1},
     year = {1970},
     doi = {10.4064/fm-68-1-23-29},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-68-1-23-29/}
}