@incollection{,
address  = {},
author = {Adam, Paul},
booktitle = {Les Vikings et leur civilisation},
keywords = {Frühmittelalter; Schifffahrt},
pages = {49-60},
title={Problèmes de navigation dans l'Atlantique nord},
uniqueid = {207125},
url = {http://opac.regesta-imperii.de/id/207125},
year = {1976}
}