@article{10_4153_CJM_1983_003_x,
     author = {Edwards, Robert and Gillman, David},
     title = {Any {Spine} of the {Cube} is {2-Collapsible}},
     journal = {Canadian journal of mathematics},
     pages = {43--48},
     year = {1983},
     volume = {35},
     number = {1},
     doi = {10.4153/CJM-1983-003-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-003-x/}
}