@article{CMH_1990__65_3_140198,
     author = {Christopher Deninger and Enric Nart},
     title = {Formal groups and {L-series.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {318--333},
     publisher = {mathdoc},
     volume = {65},
     number = {3},
     year = {1990},
     zbl = {0741.14026},
     url = {http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140198/}
}