@article{10_1017_S0017089500006194,
     author = {Serre, Jean-Pierre},
     title = {Sur la lacunarit\'e des puissances de \ensuremath{\eta}},
     journal = {Glasgow mathematical journal},
     pages = {203--221},
     year = {1985},
     volume = {26},
     doi = {10.1017/S0017089500006194},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006194/}
}