[1]
Ardyanto, S. and Tuwankotta, J.M. 2025. Normal Form of Periodic FPU Chain of Four Particles with Alternating Masses. Journal of Mathematical and Fundamental Sciences. 57, 1 (Nov. 2025), 54-69. DOI:https://doi.org/10.5614/j.math.fund.sci.2025.57.1.4.