@article{SMJ2_1997_23_1_a4,
     author = {Ohbuchi, Akira},
     title = {On the {Difference} of {4-Gonal} {Linear} {Systems} on some {Curves}},
     journal = {Serdica Mathematical Journal},
     pages = {59--68},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_1997_23_1_a4/}
}