Delfim Soares Jr. and  Webe J. Mansur,  Dynamic Analysis of Nonlinear Models with Infinite Extension by Boundary Elements.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 82 - 87
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/15394.