S. H. Shahbaz, M. Al-Sobhi, M. Q. Shahbaz, and B. Al-Zahrani, “A New Multivariate Weibull Distribution”, Pak.j.stat.oper.res., vol. 14, no. 1, pp. 75–88, Mar. 2018, doi: 10.18187/pjsor.v14i1.2192.