On square roots of class Cm of nonnegative functions of one variable Article Sidebar Download Article PDF Download Article Abstract PDF Submitted: May 30, 2009 Accepted: Oct 28, 2009 Published: Sep 28, 2010 DOI: https://doi.org/10.2422/2036-2145.2010.3.08 How to Cite Bony, J.-M., Colombini, F., & Pernazza, L. (2010). On square roots of class C<sup>m</sup> of nonnegative functions of one variable. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 9(3), 635-644. https://doi.org/10.2422/2036-2145.2010.3.08 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Issue 2010: VOL. IX, ISSUE 3 Section Article Main Article Content Jean-Michel Bony Ferruccio Colombini Ludovico Pernazza Abstract Article Details