@article{CRMATH_2011__349_13-14_719_0, author = {Harder, G\"unter and Raghuram, A.}, title = {Eisenstein cohomology and ratios of critical values of {Rankin{\textendash}Selberg} {\protect\emph{L}-functions}}, journal = {Comptes Rendus. Math\'ematique}, pages = {719--724}, publisher = {Elsevier}, volume = {349}, number = {13-14}, year = {2011}, doi = {10.1016/j.crma.2011.06.013}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.crma.2011.06.013/} }