Photothermal techniques applied to the study of thermal properties in biodegradable films E. San Martín-Martínez, M. A. Aguilar-Méndez, A. Cruz-Orea and A. García-Quiroz Eur. Phys. J. Special Topics, 153 (2008) 179-182 Published online: 12 March 2008 DOI: 10.1140/epjst/e2008-00422-8