Hooker, Giles, James O. Ramsay, and Luo Xiao. “CollocInfer: Collocation Inference in Differential Equation Models”. Journal of Statistical Software 75, no. 2 (November 19, 2016): 1–52. Accessed April 26, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v075i02.