@article{CRMATH_2015__353_6_483_0, author = {Mironescu, Petru}, title = {Superposition with subunitary powers in {Sobolev} spaces}, journal = {Comptes Rendus. Math\'ematique}, pages = {483--487}, publisher = {Elsevier}, volume = {353}, number = {6}, year = {2015}, doi = {10.1016/j.crma.2015.03.020}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.crma.2015.03.020/} }