@software{doug_burke_2021_4428938, author = {Doug Burke and Omar Laurino and wmclaugh and dtnguyen2 and Marie-Terrell and Hans Moritz Günther and Aneta Siemiginowska and Jamie Budynkiewicz and Tom Aldcroft and Christoph Deil and Brigitta Sipőcz and Johannes Buchner and Iva Laginja and Katrin Leinweber and nplee and Todd}, title = {sherpa/sherpa: Sherpa 4.13.0}, month = jan, year = 2021, publisher = {Zenodo}, version = {4.13.0}, doi = {10.5281/zenodo.4428938}, url = {https://doi.org/10.5281/zenodo.4428938} }