sponsored by Region 1 ... [et al.]. sponsored by Region 5-IEEE ... [et al.]. sponsored by the Education Committee ... [et al.]. sponsored by Syncrude Canada, Ltd. ... [et al.] sponsored by Texas A&M University ... [et al.]. sponsored by IEEE Computer Society ... [et al.]. sponsored by Office of Naval Research ... [et al.]. sponsored by American Geophysical Union ... [et al.]. sponsored by Robotics Industry Directory ... [et al.]. sponsored by IEEE Region 3, IEEE.