1.
Kita E, Kamiya N, Ikeda Y. First- and second-order sensitivity analysis schemes by collocation-type Trefftz method. Comp. Assist. Methods Eng. Sci. 1997;4(3-4):477-489. Accessed May 1, 2026. http://cames.ippt.gov.pl/index.php/cames/article/view/1384