@article{ASENS_1973_4_6_4_521_0, author = {Mazur, Barry}, title = {Notes on \'etale cohomology of number fields}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {521--552}, publisher = {Elsevier}, volume = {Ser. 4, 6}, number = {4}, year = {1973}, doi = {10.24033/asens.1257}, zbl = {0282.14004}, mrnumber = {49 #8993}, language = {en}, url = {http://www.numdam.org/articles/10.24033/asens.1257/} }