On Integrating Unmanned Aircraft Systems into the National Airspace SystemKonstantinos Dalamagkidis, Kimon P. Valavanis, Les A. Piegl · First published 2010 · Latest edition 2011Open the Tome
Unmanned Aircraft SystemsKimon P. Valavanis, Paul Oh, Les A. Piegl · First published 2011Open the Tome
Fundamental Developments of Computer-Aided Geometric ModelingLes A. Piegl · First published 1993Open the Tome
