We give a sufficient condition for the termination of flips. Then we discuss a semi-stable minimal model program for varieties with (numerically) trivial canonical divisor as an application. We also treat a slight refinement of dlt blow-ups.
"Semi-stable minimal model program for varieties with trivial canonical divisor." Proc. Japan Acad. Ser. A Math. Sci. 87 (3) 25 - 30, March 2011. https://doi.org/10.3792/pjaa.87.25