@article{mahr2020a, title = {Working with batches of {PDF} files}, volume = {9}, copyright = {CC-BY 4.0}, issn = {2397-2068}, url = {https://programminghistorian.org/en/lessons/working-with-batches-of-pdf-files}, language = {en}, urldate = {2020-02-03}, journal = {Programming Historian}, author = {Mähr, Moritz}, month = jan, year = {2020}, note = {tex.ids: mahr2020c} }