Richard F. Sincovec, Niel K. Madsen. Algorithm 494: PDEONE, Solutions of Systems of Partial Differential Equations [D3]. ACM Transactions on Mathematical Software, 1(3):261-263, 1975. [doi]
@article{SincovecM75a, title = {Algorithm 494: PDEONE, Solutions of Systems of Partial Differential Equations [D3]}, author = {Richard F. Sincovec and Niel K. Madsen}, year = {1975}, doi = {10.1145/355644.355650}, url = {http://doi.acm.org/10.1145/355644.355650}, researchr = {https://researchr.org/publication/SincovecM75a}, cites = {0}, citedby = {0}, journal = {ACM Transactions on Mathematical Software}, volume = {1}, number = {3}, pages = {261-263}, }