@article{10_4064_ap_38_1_1_12,
     author = {Bronis{\l}awa B{\l}aszczyk},
     title = {The u-invariant of fields with 16 and 32 square classes {I}},
     journal = {Annales Polonici Mathematici},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1980},
     doi = {10.4064/ap-38-1-1-12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-38-1-1-12/}
}