1. D. M. Titterington, A. F. M. Smith, and U. E. Makov, Statistical Analysis of Finite Mixture Distributions (Wiley, Chichester, 1985).
2. N. N. Aprausheva and S. V. Sorokin, Notes on Gaussian Mixture (Vychisl. Tsentr im. A. A. Dorodnitsyna Ross. Akad. Nauk, Moscow, 2015) [in Russian].
3. M. Á. Carreira-Perpiñán, “Mode-finding for mixture of Gaussian distributions,” IEEE Trans. Pattern Anal. Mach. Intell. 22 (11), 1318–1323 (2000).
4. H. Harris and C. A. B. Smith, “The sib-sib age of onset correlation among individuals suffering from a hereditary syndrome produced by more than one gene,” Ann. Eugen. 14 (4), 309–318 (1949).
5. A. Di Crescenzo and B. Martinucci, “On a symmetric, nonlinear birth-death process with bimodal transition probabilities,” Symmetry 1 (2), 201–214 (2009).