@article{CRMATH_2006__342_4_229_0,
     author = {Bleher, Frauke M. and Chinburg, Ted},
     title = {Universal deformation rings need not be complete intersections},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {229--232},
     publisher = {Elsevier},
     volume = {342},
     number = {4},
     year = {2006},
     doi = {10.1016/j.crma.2005.12.006},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2005.12.006/}
}