Pete Kelsey
http://petekelsey.typepad.com/
Jack Strongitharm
http://civilcommunity.autodesk.com/blogs/blog/6/
Scott McEachron
http://blog.121pcs.com/
Rad Lazic
http://civil3dworldwide.wordpress.com/
e quello che secondo me č il pių bravo dei bravi, Andrew Walter
http://www.myeduvbooks.com/edustore/...in_P233C48.jsp
