It's just been pointed out to me that the reference I sent was ambiguous. The
issue is "May/June". I have no idea where "month = {Mar}" came from.
@article{,
author = {J. E. Guyer and D. Wheeler and J. A. Warren},
journal = {Computing in Science and Engineering},
title = {FiPy: Partial Differential Equations with Python},
number = {May/June},
pages = {6--15},
year = 2009,
url = {http://www.ctcms.nist.gov/fipy}
}
or
J. E. Guyer, D. Wheeler & J. A. Warren, "FiPy: Partial Differential Equations
with Python", Comp. Sci. & Eng. May/June (2009) pp. 6-15