J. A. van Hulzen. A solution to SIGSAM problem #8. ACM Comm. Computer Algebra, 10(2):16-20, 1976. [doi]
@article{Hulzen76, title = {A solution to SIGSAM problem #8}, author = {J. A. van Hulzen}, year = {1976}, doi = {10.1145/1093397.1093402}, url = {http://doi.acm.org/10.1145/1093397.1093402}, researchr = {https://researchr.org/publication/Hulzen76}, cites = {0}, citedby = {0}, journal = {ACM Comm. Computer Algebra}, volume = {10}, number = {2}, pages = {16-20}, }