1 – Herr, W.J. (1986), Pulsed laser system for autonomous underwater vehicle obstacle avoidance, tracking and control, Report No. B21D-86-2, Martin Marietta Aero and Naval Systems: Balt., MD.:150.

2 – Herr, W.J. (1996), Highway profile measuring system, US Patent No. 5,510,889. April 23, 1996.

3 – Herr, W.J. (1998), Highway profile measuring system, US Patent No. 5,790,243. August 4,1998.

4 – Herr, W.J. (1993), Roughness/Profiling: Requirements Analysis and Technology Evaluation, (PSI RPT-A-272001), U.S. Army Engineers Waterways Experiment Station: Vicksburg, MS.

5 – Herr, W.J. (1995), System conceptual design for road topology measurement (RTM) System, (PSI RPT-A-272005), USDA Forest Service.

6 – Herr, W.J. (1995), A study of scanning Ladar for quality control in pavement construction, (PSI RPT-A-272002), FHWA Turner Fairbanks Highway Research Center: Washington, D.C.

7 – Herr, W.J., Dimensional measurement throughout lifecycle of pavement structures - requirements, current practice and the potential of laser range measurement technology, in NSF/NIST/FHWA Workshop on Research Needs in Robotics and Automation for the Construction Industry.(PSI RPT-A-272000) 1993: Gaithersburg, MD.

8 – Herr, W.J. (1995), Scanning Laser System for Pavement Deflection Testing: Rolling Wheel Deflectometer (RWD), SBIR Phase I Report (proprietary), US Army Engineers WES: Vicksburg. MS.

9 – Herr, W.J. (1995), et al. Deflection basin measurement and back calculation under a rolling wheel load. in Transportation Congress Proceedings. 1:600-611. San Diego, CA: ASCE.

10 – Herr, W.J. and W.G. Johnson (1995). Rolling-wheel Deflection (RWD) Measurement with Scanning Lidar. in North American Symposium on Non-destructive Evaluation of Aging Infrastructure. 2455:342-353. Oakland, CA: SPIE-The Society of Photo-optical and Instrumentation Engineering.

11 – Herr, W.J. (1997), Scanning Laser Profiler Performance Tests - WESTRACK, (PSI RPT-A-272003, viewgraph hardcopy), FHWA TFHRC LTPP Program: Washington, D.C.

12 – Herr, W. J. (1998). Roll-by Pavement Deflection Experiment at Westrack. San Marcos, CA, Phoenix Scientific Inc.: 14.

13 – Herr, W. J. (1999). Design of a new generation of pavement characterization system - Phase I SBIR FH98-7 Final Report. San Marcos, CA, Phoenix Scientific Inc.: 99.

14 – Herr, W. J. (2000). Report on the Small Step Scanning Experiment. San Marcos, CA, Phoenix Scientific Inc.: 32.