@article{MM2_1989__65_3_155436,
     author = {Martin Kr\"uskemper},
     title = {Algebraic systems of quadratic forms of number fields and function fields.},
     journal = {Manuscripta mathematica},
     pages = {225--244},
     publisher = {mathdoc},
     volume = {65},
     number = {3},
     year = {1989},
     zbl = {0689.10027},
     url = {http://geodesic.mathdoc.fr/item/MM2_1989__65_3_155436/}
}