@misc{sagetex,
author={Drake, Dan and et. al.},
title={SageTeX Github Repository},
year={2015},
url={https://github.com/dandrake/sagetex}
}
@book{komascript,
title={KOMA-Script: Eine Sammlung von Klassen und Paketen für \LaTeX 2e},
author={Kohm, Markus},
year={2014},
publisher={Lehmanns Media},
url={https://www.ctan.org/pkg/koma-script}
}
@misc{subfiles,
title={Subfiles \LaTeX{} package},
author={Garcia, Federico},
year={2012},
url={https://www.ctan.org/pkg/subfiles}
}