@article{STNB_1970-1971____A7_0, author = {Ellison, W. J.}, title = {On {Sums} of {Squares} in $Q^{\frac{1}{2}}(X)$ etc}, journal = {S\'eminaire de th\'eorie des nombres de Bordeaux}, note = {talk:7}, pages = {1--5}, publisher = {Laboratoire de th\'eorie des nombres - Universit\'e de Bordeaux I}, year = {1970-1971}, zbl = {0278.10045}, mrnumber = {392880}, language = {en}, url = {http://archive.numdam.org/item/STNB_1970-1971____A7_0/} }