1. Ambro, F.: Quasi-log varieties, Tr. Mat. Inst. Steklova 240 (2003), Biratsion. Geom. Linein. Sist. Konechno Porozhdennye Algebry, 220–239. Translation in Proc. Steklov Inst. Math. 240 (2003), no. 1, 214–233
2. Ambro, F.: Shokurov’s boundary property. J. Differ. Geom. 67(2), 229–255 (2004)
3. Ambro, F.: The moduli b-divisor of an lc-trivial fibration. Compos. Math. 141(2), 385–403 (2005)
4. Barth, W., Hulek, K., Peters, C., Van de Ven, A.: Compact Complex Surfaces, Second edition. Ergebnisse der Mathematik und Ihrer Grenzgebiete. 3. Folge. A Series of Modern Surveys in Mathematics, vol. 4. Springer-Verlag, Berlin (2004)
5. Broustet, A., Pacienza, G.: Rational connectedness modulo the non-nef locus. Comment. Math. Helv. 86(3), 593–607 (2011)