@article{10_4007_annals_2008_168_33,
     author = {Kazuya Kato and Takeshi Saito},
     title = {Ramification theory for varieties over a perfect field},
     journal = {Annals of mathematics},
     pages = {33--96},
     publisher = {mathdoc},
     volume = {168},
     number = {1},
     year = {2008},
     doi = {10.4007/annals.2008.168.33},
     mrnumber = {2415398},
     zbl = {1172.14011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2008.168.33/}
}