00601naa#a2200169#i#450# EN\\bibl\36828 20240806181706.2 1609-3178 20200408b2020####ek#y0engy0150####ca RU On the Reliability of the Results of Measurements of the Residual Thickness of the Metal Elements Gates and Valve of Navigation Locks in Operation by the Ultrasonic Method Journal article Saint-Petersburg LLC SVEN 2020 4 с. Journal article local Kuzmitskiy Mikhail L. Ksenofontov Nikolay M. naukaru.ru