Leibovici, Didier G. “Spatio-Temporal Multiway Data Decomposition Using Principal Tensor Analysis on K-Modes: The R Package PTAk”. Journal of Statistical Software 34, no. 10 (May 31, 2010): 1–34. Accessed November 21, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v034i10.