PACS:07.10.−h, 46.40.Ff (all) DOI:10.1070/PU1967v009n04ABEH003016 URL: https://ufn.ru/en/articles/1967/4/k/ Citation: Amstislavskii Ya E, Mamakov A S "New experiments on the combining of mechanical vibrations and on mechanical resonance" Sov. Phys. Usp.9 621–623 (1967)