@incollection{Nienhaus+2020+GeometrischeOptik,
author = {Hermann Nienhaus},
url = {https://www.degruyterbrill.com/database/PHYSIKO/entry/physiko.53.147/html},
year = {2020},
publisher = {De Gruyter},
address = {Berlin, Boston},
title = {Geometrische Optik},
note = {2018},
booktitle = {Physik Online},
lastchecked = {2026-05-07}
}