Rahimi, Z., G. Rezazadeh, W. Sumelka, and X.-J. Yang. 2017. “A Study of Critical Point Instability of Micro and Nano Beams under a Distributed Variable-Pressure Force in the Framework of the Inhomogeneous Non-Linear Nonlocal Theory”. Archives of Mechanics 69 (6): 413-33. https://am.ippt.pan.pl/index.php/am/article/view/v69p413.