Radavičius, Marijus, and Jurgis Sušinskas. “A Semiparametric Model for Count Data Clusterization With Application to Medical Data”. Lietuvos matematikos rinkinys 37, no. I (December 15, 1997): 209–216 . Accessed November 7, 2025. https://www.zurnalai.vu.lt/LMR/article/view/38215.