Z. Rahimi, G. Rezazadeh, W. Sumelka, and X.-J. Yang, “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”, Arch. Mech., vol. 69, no. 6, pp. 413–433, Dec. 2017, doi: 10.24423/aom.2660.