@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},
     mrnumber = {49 #8993},
     zbl = {0282.14004},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1257/}
}