TY - JOUR T1 - Telling the difference between studs and squats JO - Railway Gazette International UR - http://www.railwaygazette.com/about-us.html PY - 2012/08/01 AU - Grassie S AU - Fletcher D ED - Jackson C PB - DVV Media Group VL - 168 IS - 8 SP - 36 EP - 38 Y2 - 2024/12/22 ER -