@article{MM2_1992__77_2-3_155781,
     author = {G. Martens and C. Keem and Marc Coppens},
     title = {Primitive linear series on curves.},
     journal = {Manuscripta mathematica},
     pages = {237--264},
     publisher = {mathdoc},
     volume = {77},
     number = {2-3},
     year = {1992},
     zbl = {0786.14016},
     url = {http://geodesic.mathdoc.fr/item/MM2_1992__77_2-3_155781/}
}