Helmut Alt, Jan van Leeuwen. The complexity of basic complex operations. Computing, 27(3):205-215, 1981. [doi]
@article{AltL81,
title = {The complexity of basic complex operations},
author = {Helmut Alt and Jan van Leeuwen},
year = {1981},
doi = {10.1007/BF02237978},
url = {http://dx.doi.org/10.1007/BF02237978},
researchr = {https://researchr.org/publication/AltL81},
cites = {0},
citedby = {0},
journal = {Computing},
volume = {27},
number = {3},
pages = {205-215},
}