Comparing results to identify defects in wood of Norway spruce (Picea abies L. KARST.) using the drill devices Resistograph 1410, Teredo and impulshammer-sound system IML. 1. Sound measurements and drill diagrams on wood without defects
F. Gruber, Comparing results to identify defects in wood of Norway spruce (Picea abies L. KARST.) using the drill devices Resistograph 1410, Teredo and impulshammer-sound system IML. 1. Sound measurements and drill diagrams on wood without defects, ALLG FORST, 171(12), 2000, pp. 223-227