BibTex format
@inbook{Corti:2007:acprof:oso/9780198570615.003.0002,
author = {Corti, A},
booktitle = {Flips for 3-folds and 4-folds},
doi = {acprof:oso/9780198570615.003.0002},
title = {3-fold flips after Shokurov},
url = {http://dx.doi.org/10.1093/acprof:oso/9780198570615.003.0002},
year = {2007}
}