@article{GDZPPN002435942,
title = {Length of Extremal Rays and Generalized Adjunction.},
journal = {Mathematische Zeitschrift},
volume = {199},
year = {1988},
pages = {409-428},
zbl = {0668.14004},
url = {http://dml.mathdoc.fr/item/GDZPPN002435942}
}
Wisniewski, Jaroslaw A. Length of Extremal Rays and Generalized Adjunction.. Mathematische Zeitschrift, Tome 199 (1988) pp. 409-428. http://gdmltest.u-ga.fr/item/GDZPPN002435942/