@article{JRAM_1987__0375_0376_152901,
     author = {M.J. Taylor},
     title = {Hopf structure and the {Kummer} theory of formal groups.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--11},
     publisher = {mathdoc},
     volume = {0375_0376},
     year = {1987},
     zbl = {0609.12015},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1987__0375_0376_152901/}
}