@article{MZ_1995__218_4_174732,
     author = {Piotr Jaworski},
     title = {About the {Witt} rings of function fields of algebroid quadratic quasihomogeneous surfaces.},
     journal = {Mathematische Zeitschrift},
     pages = {319--342},
     publisher = {mathdoc},
     volume = {218},
     number = {4},
     year = {1995},
     zbl = {0827.13010},
     url = {http://geodesic.mathdoc.fr/item/MZ_1995__218_4_174732/}
}