Rumbutis, Laurynas, Ivanas Višniakas, and Aurimas Jurčius. 2010. “Research on the Mechanical Properties of the Weld Seams of Constructional Steel Using Vibration Energy Method During Welding”. Mokslas – Lietuvos Ateitis / Science – Future of Lithuania 2 (4):73-76. https://doi.org/10.3846/mla.2010.075.