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: , 1999.
Stoyanov, S. (1999)
Experimental Possibilities of the Impact Energy Evaluation of a Hydraulic Hammer,
:
Stoyanov, S.
(1999).
Experimental Possibilities of the Impact Energy Evaluation of a Hydraulic Hammer. // <I>Науч.<D> тр. на Русенски унив. "А. Кънчев", 37, 1999, N 5, с. 37-42..