BibTeX
Here’s a BibTeX entry for Eigen that you can use to cite Eigen in your academic publications:
@MISC{eigenweb,
author = {Ga\"{e}l Guennebaud and Beno\^{i}t Jacob and others},
title = {Eigen},
howpublished = {https://libeigen.gitlab.io},
year = {2010}
}
If you are using the Natbib package, we recommend using \citet* and \citep* instead of \citet and \citep, as the latter commands tend to keep only the first-named author and “others”.
The choice of the two main authors listed there is reasonable in general, but do feel free to use a different author field, for example if you think that in your particular case, you are relying on a feature developed by another author.