1. H. M. Nykyforchyn, O. T. Tsyrul’nyk, D. Yu. Petryna, and M. I. Hredil’, “Degradation of steels used in gas main pipelines after their 40-year operation,” Strength Mater.,41, No. 5, 501–505 (2009).
2. P. Maruschak, I. Danyliuk, O. Prentkovskis, R. Bishchak, A. Pylypenko, and A. Sorochak, “Degradation of the main gas pipeline material and mechanisms of its fracture,” J. Civil Eng. Management,20, Issue 6, 864–872 (2014).
3. M. Hredil and O. Tsyrulnyk, “Inner corrosion as a factor of in-bulk steel degradation of transit gas pipelines,” in: 18th Europ. Conf. on Fracture: Fracture of Materials and Structures from Micro to Macro Scale (ECF-18) (Dresden, Germany, 30.08–03.09, 2010), Manuscript No. 483 (2010).
4. O. T. Tsyrulnyk, H. M. Nykyforchyn, O. I. Zvirko, and D. Yu. Petryna, "Embrittlement of the steel of an oil-trunk pipeline," Fiz.- Khim. Mekh. Mater.,40, No. 2, 125-126 (2004)
5. English translation:Mater. Sci.,40, No. 2, 302-304 (2004).