Lavrenko, I., Chaikovska, O. and Yakovlieva, S. 2023. Determination of eigen vibration modes for three-layer plates using the example of solar panels. International Science Journal of Engineering & Agriculture. 2, 2 (Apr. 2023), 103–116. DOI:https://doi.org/10.46299/j.isjea.20230202.10.