Brian Purcell (2010). "National Transport Rules of the Road". Brian's Guide To Getting Around Germany. Brian Purcell. مؤرشف من الأصل في 2018-01-24. اطلع عليه بتاريخ 2012-07-01.
Brian Purcell (2010). "National Transport Rules of the Road". Brian's Guide To Getting Around Germany. Brian Purcell. مؤرشف من الأصل في 2018-01-24. اطلع عليه بتاريخ 2012-07-01.