@article{Yohe:1979:SIA,
author = {Yohe, J. M.},
title = {Software for interval arithmetic: A reasonably portable package},
journal = {ACM Trans. Math. Software},
fjournal = {Association for Computing Machinery. Transactions on
Mathematical Software},
volume = {5},
year = {1979},
number = {1},
pages = {50–63},
issn = {0098-3500},
doi = {10.1145/355815.355819}}