Complex Kraenkel-Manna-Merle system in a ferrite: N-fold Darboux transformation, generalized Darboux transformation and solitonsYuan Shen, Bo Tian, Tian-Yu Zhou and Chong-Dong ChengMath. Model. Nat. Phenom., 18 (2023) 30DOI: https://doi.org/10.1051/mmnp/2023029