@article{10_4153_CJM_1979_031_5,
     author = {Spiegel, Eugene and Trojan, Allan},
     title = {The {Schur} {Subgroup} of a {p-Adic} {Field}},
     journal = {Canadian journal of mathematics},
     pages = {300--303},
     year = {1979},
     volume = {31},
     number = {2},
     doi = {10.4153/CJM-1979-031-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1979-031-5/}
}