“Constructing Separable Non-$2\pi$-Periodic Solutions to the Navier-Lamé Equation in Cylindrical Coordinates Using the Buchwald Representation: Theory and Applications”, Adv. Appl. Math. Mech., vol. 12, no. 3, pp. 694–728, Apr. 2020, doi: 10.4208/aamm.OA-2019-0128.