G. Oprișan

Semi-Markov Processes and Reliability

N. Limnios, G. Oprișan, 2012 .

Limit theorems for J − X processes with a general state space

G. Oprișan, S. Grigorescu, 1976 .

Introduction to Stochastic Models

Nikolaos Limnios, Nikolaos Limnios, Marius Iosifescu, 2010 .

On the Failure Rate

Gheorghe Oprişan, G. Oprișan, 1999 .

Introduction to Stochastic Models: Iosifescu/Introduction to Stochastic Models

Nikolaos Limnios, Marius Iosifescu, Gheorghe Oprişan, 2010 .