http://www.marinelink.com/news/tanker-trends-atb-construction-forges-ahead-just-not-at-torrid-2002-pace305447
Tanker Trends: ATB Construction Forges Ahead …. Just Not at Torrid 2002 Pace
Construction of Articulated Tug Barge units (ATB) continues to occupy a prominent place in the order books of several shipyards.