@article{IM2_2001_65_6_a3,
     author = {Yu. G. Prokhorov and V. V. Shokurov},
     title = {The first main theorem on complements: from global to local},
     journal = {Izvestiya. Mathematics },
     pages = {1169--1196},
     publisher = {mathdoc},
     volume = {65},
     number = {6},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2001_65_6_a3/}
}