{{sfn | Buchheister | 2013 | p=}}

* {{cite book | last=Buchheister | first=Gustav A. | title=Handbuch der Drogisten-Praxis | publisher=Springer-Verlag | date=2013-12-01 | isbn=978-3-662-36325-6 | language=de}}

<ref name="g067">{{cite book | last=Buchheister | first=Gustav A. | title=Handbuch der Drogisten-Praxis | publisher=Springer-Verlag | date=2013-12-01 | isbn=978-3-662-36325-6 | language=de | page=}}</ref>