David Joyner, Ondrej Certík, Aaron Meurer, Brian E. Granger. Open source computer algebra systems: SymPy. ACM Comm. Computer Algebra, 45(3/4):225-234, 2011. [doi]
@article{JoynerCMG11,
title = {Open source computer algebra systems: SymPy},
author = {David Joyner and Ondrej Certík and Aaron Meurer and Brian E. Granger},
year = {2011},
doi = {10.1145/2110170.2110185},
url = {http://doi.acm.org/10.1145/2110170.2110185},
researchr = {https://researchr.org/publication/JoynerCMG11},
cites = {0},
citedby = {0},
journal = {ACM Comm. Computer Algebra},
volume = {45},
number = {3/4},
pages = {225-234},
}