Ivanchuk, Oleksandr     Diagnostics of technological residual stresses in different thickness circumferential welded joints of pipelines [Текст] / Oleksandr Ivanchuk, Yurij Banachevych, Vasyl Osadchuk, Andrii Kychma // Defektoskopie 2007 : 37 Mezinar. konf. a vystava, 7-9 list. 2007, Praha : sb. prispevku / ed. by: M. Korenska, P. Mazal. — Praha, 2007. — S. 97-104.