?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Bacigalupo%2C+Andrea&rft.aufirst=Andrea&rft.aulast=Bacigalupo&rft.date=April+2011&rft.title=Non-local+modelling+of+blocky+rock+masses+with+periodic+jointed+structure&rft.genre=proceeding