@conference {40342, title = {Observer et {\'e}valuer les usages des biblioth{\`e}ques num{\'e}riques}, booktitle = {Archives et m{\'e}moires : (re)constitution, gestion et mise {\`a} disposition}, year = {2013}, month = {2013/11/22}, address = {Paris, Archives nationales}, author = {Philippe Chevallier} }