@article{JTNB_2001__13_1_143_0,
     author = {Groenewegen, Richard P.},
     title = {An arithmetic analogue of {Clifford's} theorem},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {143--156},
     publisher = {Universit\'e Bordeaux I},
     volume = {13},
     number = {1},
     year = {2001},
     mrnumber = {1838077},
     zbl = {1069.11044},
     language = {en},
     url = {http://www.numdam.org/item/JTNB_2001__13_1_143_0/}
}