Collins, J. (2007). The Electronic Chart: 2nd Edition. Horst Hecht, Bernhard Berking, Gert Büttgenbach, Mathias Jonas, Lee Alexander, published by GITC (currently: Reed Business Geo) in 2006 and distributed by Reed Business Geo. The International Hydrographic Review, 8(1). Retrieved from https://journals.lib.unb.ca/index.php/ihr/article/view/20786