@article{ASENS_2005_4_38_5_751_0, author = {Acquistapace, Francesca and Broglia, Fabrizio and Fernando, Jos\'e F. and Ruiz, Jes\'us}, title = {On the pythagoras numbers of real analytic surfaces}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, volume = {38}, year = {2005}, pages = {751-772}, doi = {10.1016/j.ansens.2005.04.001}, mrnumber = {2195258}, zbl = {1087.32003}, language = {en}, url = {http://dml.mathdoc.fr/item/ASENS_2005_4_38_5_751_0} }
Acquistapace, Francesca; Broglia, Fabrizio; Fernando, José F.; Ruiz, Jesús M. On the pythagoras numbers of real analytic surfaces. Annales scientifiques de l'École Normale Supérieure, Tome 38 (2005) pp. 751-772. doi : 10.1016/j.ansens.2005.04.001. http://gdmltest.u-ga.fr/item/ASENS_2005_4_38_5_751_0/
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