@incollection{,
address  = {},
author = {Neumann, Ronald},
booktitle = {Lexikon des Mittelalters},
keywords = {Mittelalter; Neumann, Ronald (1950-2000)},
pages = {Sp. 1474},
title={Art. Venner},
uniqueid = {1822751},
url = {http://opac.regesta-imperii.de/id/1822751},
year = {1997}
}