Observation of Meyer-Neldel rule in amorphous films of Ge1–xSe2PbxM. M. El-Nahass, H. M. Abd El-Khalek, H. M. El-Mallah and F. S. Abu-SamahaEur. Phys. J. Appl. Phys., 45 1 (2009) 10301DOI: https://doi.org/10.1051/epjap:2008184