B. F. Caviness. More on computing roots of integers. ACM Comm. Computer Algebra, 9(3):18-20, 1975. [doi]
@article{Caviness75, title = {More on computing roots of integers}, author = {B. F. Caviness}, year = {1975}, doi = {10.1145/1088309.1088315}, url = {http://doi.acm.org/10.1145/1088309.1088315}, researchr = {https://researchr.org/publication/Caviness75}, cites = {0}, citedby = {0}, journal = {ACM Comm. Computer Algebra}, volume = {9}, number = {3}, pages = {18-20}, }