Optimal burn-in policy based on a set of cutoff points using mixture inverse Gaussian degradation process and copulas - Morita, Lia Hanna Martins; Tomazella, Vera Lucia Damasceno; Ferreira, Paulo Henrique; Ramos, Pedro Luiz; Balakrishnan, Narayanaswamy; Louzada, Francisco (Applied Stochastic Models in Business and Industry, 2021)