@incollection{HeeseHiendl2020, author = {Carl Heese and Christoph Hiendl}, title = {Freundschaften im Alter}, booktitle = {Vom Gl{\"u}ck der Freundschaft}, edition = {1. Auflage}, editor = {Bernhard Sill and Thomas Le Knieps-Port Roi}, isbn = {978-3-8306-7999-8}, year = {2020}, }