1. A practical guide to splines;de Boor,2001
2. Collocation software for boundary value ODEs;Ascher;ACM Trans. Math. Software,1981
3. NAG Numerical Algorithms Group fortran library. d02tlf. in: The Numerical Algorithms Group, Ltd., Wilkinson House, Oxford, UK.
4. Scilab, bvode, Scilab Enterprises, 143 bis rue Yves Le Coz, 78000 Versailles, France.
5. P. Virtanen, Scikits.bvp1lg 0.2.8, https://pv.github.io/scikits.bvp1lg/.