Characterization of the mechanical behavior of ultrafinegrained metals using digital image correlationM. Hokka, J. Seidt, T. Matrka, A. Gilat, V.T. Kuokkala, J. Kokkonen and S. MüllerEPJ Web of Conferences, 6 (2010) 05005DOI: https://doi.org/10.1051/epjconf/20100605005