Ni, S. 2024. RESPONSE SOLUTIONS OF 2-DIMENSIONAL ELLIPTIC DEGENERATE QUASI-PERIODIC SYSTEMS WITH SMALL PARAMETERS: Song Ni, 2024 Volume 2024, pp. 19. MATTER: International Journal of Science and Technology. (Mar. 2024), 19. DOI:https://doi.org/10.20319/icstr.2024.19.