https://www.sciencedirect.com/science/article/pii/S1877050914002683

http://www.scholarpedia.org/article/Backward_differentiation_formulas

https://en.m.wikipedia.org/wiki/Backward_differentiation_formula

https://www.google.com/search?q=adaptive+stiff+solvers+at+low+accuracy+and+complexity

https://spring.ghost.io/openblas/

http://trvoid.blogspot.com/2020/01/intel-mkl.html?m=1

https://software.intel.com/en-us/articles/intel-mkl-sparse-solvers-training-material

https://www.geeksforgeeks.org/sparse-matrix-representation/

https://en.m.wikipedia.org/wiki/Sparse_matrix