@article{IM2_1994_43_3_a7,
     author = {V. V. Shokurov},
     title = {An addendum to the paper {\textquotedblleft}3-fold log flips{\textquotedblright}},
     journal = {Izvestiya. Mathematics},
     pages = {527--558},
     year = {1994},
     volume = {43},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1994_43_3_a7/}
}