Kavaliauskas, Mindaugas, and Rimantas Rudzkis. “Projection-Based Estimation of Multivariate Distribution Density”. Lietuvos matematikos rinkinys 42, no. spec. (December 20, 2002): 537–540. Accessed November 22, 2024. https://www.journals.vu.lt/LMR/article/view/33027.