Stefania Bellavia Stefano Lodi Benedetta Morini Inferences on Kernel Density Estimates by Solving Nonlinear Systems. 389-397 2006 conf/ssdbm/2006 SSDBM http://doi.ieeecomputersociety.org/10.1109/SSDBM.2006.30 db/conf/ssdbm/ssdbm2006.html#BellaviaLM06