@incollection{MSMF_1971__25__17_0,
     author = {Armitage, J. V.},
     title = {The product of $N$ linear forms in a field of series and the {Riemann} hypothesis for curves},
     booktitle = {Colloque de th\'eorie des nombres (Bordeaux, 1969)},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     pages = {17--27},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {25},
     year = {1971},
     doi = {10.24033/msmf.29},
     mrnumber = {50 #12923},
     zbl = {0221.14017},
     url = {http://www.numdam.org/articles/10.24033/msmf.29/}
}