REFERENCES
- Fulton , W. 1993 . Introduction of Toric Varieties 131 Princeton University Press . Annals of Math. Studies
- Kollár , J. 1997 . Singularities of Pairs . Proc. Symp. Pure Math. , 62 ( 1 ) : 221 – 287 .
- Igusa , J. 1977 . On the First Terms of Certain Asymptotic Expansions: Complex and Algebraic Geometry . Iwanami Shoten , : 357 – 368 .