1. Mooney, M.A., Miller, G.A., The,Y. and Bong, W. (2000), Importance of Invasive Measures in Assessment of Existing Pavements, Journal of Performance of Constructed Facilities, Vol. 14, No. 4, pp. 149–154.
2. Loken, M. (2005), Current State of the Art and Practise of Using GPR for Minnesota Roadway Applications, Minnesota Local Research Board, Office of Research Activities.
3. Al-Qadi, I.L. and Lahouar, S. (2005), Measuring Layer Thicknesses with GPR – Theory to Practice, Journal of Construction and Building Materials, Vol. 19, pp. 763–772.
4. Saarenketo, T. (2006), Electrical Properties of Road Materials and Subgrade Soils and the Use of Ground Penetrating Radar in Traffic Infrastructure Surveys, Faculty of Science, Department of Geosciences, University of Oulu.
5. Al-Qadi, I.L., Lahouar, S. and Loulizi A. (2003), Successful Application of Ground-Penetrating Radar for Quality Assurance–Quality Control of New Pavements, Transportation Research Record: Journal of the Transportation Research Board, No. 1861, Transportation Research Board of the National Academies, Washington, D.C., pp. 86–97.