Photoacoustic investigations of thermal and electronic properties of single crystal Ge doped with Cr D. Vasiljevic-Radovic, P.M. Nikolic, K.T. Radulovic, A.I. Bojičic, D. Lukovic, S. Savic, S. Vujatovic, V. Blagojevic, L. Lukic et D. Uroševic J. Phys. IV France, 125 (2005) 435-438 DOI: 10.1051/jp4:2005125102