APA
NOHLEN D., I.Grotz F. C., .External voting: Legal framework and overview of electoral legislation. : .
Chicago
NOHLEN Dieter, I.Grotz Florian Coaut, .External voting: Legal framework and overview of electoral legislation. : .
Harvard
NOHLEN D., I.Grotz F. C., .External voting: Legal framework and overview of electoral legislation. : .
MLA
NOHLEN Dieter, I.Grotz Florian Coaut, .: . .