General Directorate for National Roads and Motorways, Olsztyn · gov.pl
General Directorate for National Roads and Motorways, Olsztyn — 20 lat Polski w UE. Plany modernizacji infrastruktury drogowej stały się rzeczywistością, cited on Factrail
Cited by 1 material across Factrail · last used Oct 2026.
The road authority identifies named highways and bypass projects funded in the 2007–2013 cycle.