BibTex format
@inbook{Tillfors:2021,
author = {Tillfors, M and Mörtberg, E and Van, Zalk N},
booktitle = {Social ångest från teori till behandling},
editor = {Mörtberg and Tillfors},
pages = {53--68},
publisher = {Studentlitteratur},
title = {Atypisk social ångest},
year = {2021}
}