@article{ZNSL_2013_413_a9,
     author = {I. Faizov},
     title = {Ramification jump in model extensions of degree~$p$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {183--218},
     year = {2013},
     volume = {413},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2013_413_a9/}
}