@article {15332, title = {In vitro monitoring of surface mechanical properties of poly(L-lactic acid) using microhardness}, journal = {J Appl Polym Sci }, volume = {105}, year = {2007}, month = {2007-11-26}, pages = {3858}, author = {Saiz-Arroyo, C. and Wang, Y. and Rodriguez-Perez, M. A. and Alves, N. M. and Mano, J. F.} }