33rd European Rotorcraft Forum 2007 : ERF 33; Kazan, Russia, 11 - 13 September 2007 ; Vol. 4
AUVSI Unmanned Systems Program Review 2008 : Washington, DC, USA, 27 - 29, 2008
2008 AMOS Conference proceedings : September 16 - 19, 2008, Wailea, Maui, Hawaii, USA
AUVSI's unmanned systems Asia-Pacific 2008 : Singapore, 17 - 18 February 2008
Progressing Cavity Pumps Conference 2008 : April 27 - 29, 2008, Houston, Texas, USA
67th International Conference on Mass Properties 2008 : May 17 - 22, 2008, Seattle, Washington, USA