@article{FerroSilvello2013a, Ê author={Ferro, N. and Silvello, G.}, Ê title={{NESTOR: A Formal Model for Digital Archives}}, Ê journal={Inf. Process. Manage.}, Ê volume={49}, Ê number={6}, Ê year={2013}, Ê pages={1206--1240}, Ê ee={http://dx.doi.org/10.1016/j.ipm.2013.05.001} }