For citations:

Baev A.R., Konovalov G.E., Majorov A.L. IMPROVEMENT OF METHODS AND MEANS OF ULTRASONIC CONTROL OF METAL GOODS WITH MODIFIED SURFACE LAYER. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2011;(3):148-151. (In Russ.) https://doi.org/10.21122/1683-6065-2011-3-148-151