William H. Anderson, R. B. Ball, J. R. Voss. A Numerical Method for Solving Control Differential Equations on Digital Computers. Journal of the ACM, 7(1):61-68, 1960. [doi]
@article{AndersonBV60, title = {A Numerical Method for Solving Control Differential Equations on Digital Computers}, author = {William H. Anderson and R. B. Ball and J. R. Voss}, year = {1960}, doi = {10.1145/321008.321016}, url = {http://doi.acm.org/10.1145/321008.321016}, researchr = {https://researchr.org/publication/AndersonBV60}, cites = {0}, citedby = {0}, journal = {Journal of the ACM}, volume = {7}, number = {1}, pages = {61-68}, }