10.1145%2F98267.98299.bib

@article{Amos:1990:RA:98267.98299,
 author = {Amos, D. E.},
 title = {Remark on algorithm 644},
 journal = {ACM Trans. Math. Softw.},
 volume = {16},
 issue = {4},
 month = {December},
 year = {1990},
 issn = {0098-3500},
 pages = {404--},
 url = {http://doi.acm.org/10.1145/98267.98299},
 doi = {http://doi.acm.org/10.1145/98267.98299},
 acmid = {98299},
 publisher = {ACM},
 address = {New York, NY, USA},
}