@article{MM2_1990__66_1_155467,
     author = {Karl Otto St\"ohr},
     title = {Non-conservative plane quartic curves in characteristic five.},
     journal = {Manuscripta mathematica},
     pages = {183--204},
     publisher = {mathdoc},
     volume = {66},
     number = {1},
     year = {1990},
     zbl = {0718.14019},
     url = {http://geodesic.mathdoc.fr/item/MM2_1990__66_1_155467/}
}