00504naa#a2200169#i#450# EN\\bibl\14591 20241116005457.6 1609-3178 20151215b2015####ek#y0engy0150####ca RUS RU The Flaw Detection of Composite Superstructure for Passenger Hydrofoil by the NDT Acoustic Methods Journal article Saint-Petersburg LLC SVEN 2015 4 с. Journal article local Frantsev Mikhail naukaru.ru