TY - JOUR AU - Darcis, Philippe AU - McCowan, Christopher AU - Windhoff, H. AU - McColskey, Joseph AU - Siewert, Thomas C2 - Engineering Fracture Mechanics DA - 2007-10-16 00:10:00 LA - en PB - Engineering Fracture Mechanics PY - 2007 TI - Crack Tip Opening Angle Optical Measurement Methods in Five Pipeline Steels ER -