Asharia, M. ., M. . Mobarak, and M. . Mostafa. “Wigner Crystal Phase Investigations in 2D Electrons on Helium Films”. WAS Science Nature (WASSN) ISSN: 2766-7715, vol. 2, no. 1, Mar. 2019, https://worldascience.com/journals/index.php/wassn/article/view/5.