@phdthesis{Bertram2011,
author = {Bertram, Beate geb. Polky},
year = {2011},
title = {Posttraumatischer Kopfschmerz nach Schädel-Hirn-Trauma},
type = {Dissertation},
url = "http://dx.doi.org/10.17169/refubium-12067",
}