1.
PÎRȘAN D, PRAISACH Z-I. Natural frequencies and mode shapes in zero-force members of a truss. Studia UBB Engineering [Internet]. 2021 Nov. 9 [cited 2025 Feb. 5];66(1):94-9. Available from: https://studia.reviste.ubbcluj.ro/index.php/subbengineering/article/view/45