
Publication
ABOUT A HALF-WAVE LENGTH OF THE BOTTOM-HOLE CORE DRILL COMPOSED OF STRUCTURAL ELEMENTS OF DIFFERENT STIFFNESS
(STEF92 Technology, 2017-06-20, Boranbay Ratov)
Hydrogeology, Engineering Geology and Geotechnics2017
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(STEF92 Technology, 2017-06-20, Boranbay Ratov)