@article{10_4153_CJM_1981_015_2, author = {Bass, D. W.}, title = {Topologically {Versal} {Deformations} of {Matrices;} {Codimension} at most {Two}}, journal = {Canadian journal of mathematics}, pages = {168--180}, year = {1981}, volume = {33}, number = {1}, doi = {10.4153/CJM-1981-015-2}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-015-2/} }