O.J-M. Hoffmann, B.B. Guzina, and A. Drescher (2004). “Stiffness estimates using portable deflectometers”, Transp. Research Record, 1869, 59-66.

O.J-M. Hoffmann, B.B. Guzina, and A. Drescher (2004). “Stiffness estimates using portable deflectometers”, Transp. Research Record, 1869, 59-66.  Article