@article{ADM_2020_30_1_a5,
     author = {P. Gladki and M. Marshall},
     title = {Witt equivalence of function fields of conics},
     journal = {Algebra and discrete mathematics},
     pages = {63--78},
     year = {2020},
     volume = {30},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2020_30_1_a5/}
}