Alipour Ghassabi, A., S. Dag, and E. Cigeroglu. 2017. “Free Vibration Analysis of Functionally Graded Rectangular Nanoplates Considering Spatial Variation of the Nonlocal Parameter”. Archives of Mechanics 69 (2): 105-30. https://am.ippt.pan.pl/index.php/am/article/view/v69p105.