Numerical analysis of nonhomogeneous media through photothermal deflection method M. Bertolotti, M. Firpo, A. Fontana, G. Liakhou, R. Li Voti, C. Sibilia et G. De Portu J. Phys. IV France, 04 C7 (1994) C7-83-C7-86 DOI: 10.1051/jp4:1994721