@article{MS2_1985__57_166951,
     author = {Tauno Mets\"ankyla},
     title = {Note on a congruence for p-adic {L-functions.}},
     journal = {Mathematica Scandinavica},
     pages = {225--235},
     publisher = {mathdoc},
     volume = {57},
     year = {1985},
     zbl = {0565.12008},
     url = {http://geodesic.mathdoc.fr/item/MS2_1985__57_166951/}
}