Free vibration analysis of helicoidal bars withthin walled circular tube cross section via mixed finite element method
Sigma Journal of Engineering and Natural Sciences, Vol. 33, Ocak 2015, s. 200-218, ISSN: 1304-7205 (2004)
ERATLI NİHAL,ERMİŞ MERVE,OMURTAG MEHMET HAKKI