@article{MM2_1997__93_4_156315,
     author = {Tauno Mets\"ankyl\"a},
     title = {An application of the p-adic class number formula.},
     journal = {Manuscripta mathematica},
     pages = {481--498},
     publisher = {mathdoc},
     volume = {93},
     number = {4},
     year = {1997},
     zbl = {0886.11061},
     url = {http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156315/}
}