Experimental and Theoritical Investigation of Some Aspects of Percussive Drilling http://127.0.0.1/xmlui/handle/123456789/2447 Wed, 15 Apr 2026 01:51:01 GMT 2026-04-15T01:51:01Z Experimental and Theoritical Investigation of Some Aspects of Percussive Drilling http://127.0.0.1/xmlui/handle/123456789/2448 Experimental and Theoritical Investigation of Some Aspects of Percussive Drilling Murthy, Chivukula Suryanarayana Tue, 01 Sep 1998 00:00:00 GMT http://127.0.0.1/xmlui/handle/123456789/2448 1998-09-01T00:00:00Z