Shokurov

key words for the index

asymptotically saturated;
bi-divisor;
birationally free divisors;
bounds on singularities;
contraction of fibre type;
D-flip;
f.g. algebra;
fibration, see contraction of fibre type;
flips, see D-flip, log flips, pl flips, special flips;
graded divisorial sheaves;
inductive families;
log flips;
not birational, see contraction of fibre type;
pl flips;
restricted algebras;
saturation, see also asymptotically saturated;
special flips;
special termination;
threshold;