id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejpam-6723	Alraddadi, Ibrahim; Almuaddi, Saad M. 	Frequency Locking and Bifurcation Analysis in Asymmetrically Forced Van der Pol-DuffingModel of Glacial Cycles	2025	20	.pdf	application/pdf	5999	307	46	Figures 6(a) through 6(c) illustrate the saddle-node bifurcation of the return map as system parameters are varied. [9] established the theoretical framework for under- standing folded singularities and canard trajectories in forced van der Pol systems, while Ashwin et al. (2018)	cache/ejpam-6723.pdf	txt/ejpam-6723.txt