TA013E: 
A linear actuator system with 1-angstrom closed-loop control resolution 
			and 50-milimeter travel range
			(D. Shu, Y. Han, T.S.Toellner, and E.E. Alp, Advanced Photon Source, Argonne National Laboratory)
			
					
			TA028E: 
Nanometer Positioning Control by a Multiple-Pass Laser 
			Doppler Displacement Meter
			(L. Wang, C.P. Wang) ISPMM International Symposium on Precision Mechanical Measurement (China), 2004
									
			
			TA037E: 
Application of Laser Feedback Metrology to a Hexapod Test Strut
			
			(M.P. Schmidt-Lange, E.G. Amatucci, A.J. Wavering, National Institute of Standards and Technology, Gaithersburg, 
			Maryland 20899)
			
							
			TA522E: 
Using the laser doppler displacement meter for precision 
			positioning and motion control
			(C.P. Wang) June 1991, Tower Media Corp., Glen Ellyn III, U.S.A.
			
				
			TA528E: 
Sub-nanometer resolution linear encoder with polarization 
			insensitive laser Doppler displacement meter technology and multi-reflection optics
			(G. Liotto, C.P. Wang; D. Shu, Advanced Photon Source, Argonne National Laboratory)
			Proceedings of the 11th euspen International Conference – Como – May 2011