APA

Offrell P., Sjögren L., . (2004). Crack measures and reference systems for a harmonised crack data collection using automatic systems. : 2nd European pavement and asset management conference.

Chicago

Offrell Petra, Sjögren Leif, . 2004. Crack measures and reference systems for a harmonised crack data collection using automatic systems. : 2nd European pavement and asset management conference.

Harvard

Offrell P., Sjögren L., . (2004). Crack measures and reference systems for a harmonised crack data collection using automatic systems. : 2nd European pavement and asset management conference.

MLA

Offrell Petra, Sjögren Leif, . Crack measures and reference systems for a harmonised crack data collection using automatic systems. : 2nd European pavement and asset management conference. 2004.