1. Ferreira F, Pacheco A (2007) Comparison of level-crossing times for Markov and semi-Markov processes. Stat Probab Lett 77(2):151–157
2. Glynn PW, Haas PJ (2006) Laws of large numbers and functional central limit theorems for generalized semi-Markov processes. Stoch Model 22(2):201–231
3. Grabski F (2002) Semi-Markov models of systems reliability and operations analysis. System Research Institute, Polish Academy of Science (in Polish)
4. Jakusik E, Kołowrocki K, Kuligowska E, Soszyńska-Budny J, Torbicki M (2016) Modelling climate-weather change process including extreme weather hazards for port oil piping transportation system. J Pol Saf Reliab Assoc, Summer Safety Reliab Semin 7(3):31–40
5. Jakusik E, Kołowrocki K, Kuligowska E, Soszyńska-Budny J, Torbicki M (2016) Identification methods and procedures of climate-weather change process including extreme weather hazards for port oil piping transportation system operating at under water Baltic Sea area. J Pol Saf Reliab Assoc, Summer Safety Reliab Semin 7(3):47–56