Salawu, Saheed, et al. “INVESTIGATION OF THE DYNAMIC BEHAVIOUR OF NON-UNIFORM THICKNESS CIRCULAR PLATES RESTING ON WINKLER AND PASTERNAK FOUNDATIONS”. Acta Polytechnica, vol. 60, no. 2, Apr. 2020, pp. 127-44, https://doi.org/10.14311/AP.2020.60.0127.