Kamiński, M., & 		Szafran, J.
(2017).
 Eigenvalue analysis for high telecommunication towers with lognormal stiffness by the response function method and SFEM.
<em>Computer Assisted Methods In Engineering And Science, 16</em>(3–4), 279-290.
Retrieved from <a href="https://cames.ippt.gov.pl/index.php/cames/article/view/151" target="_new">https://cames.ippt.gov.pl/index.php/cames/article/view/151</a>