TY - JOUR AU - J. Kollár TI - Birational Rigidity of Fano Varieties and Field Extensions JO - Informatics and Automation PY - 2009 SP - 103 EP - 108 VL - 264 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2009_264_a11/ LA - en ID - TRSPY_2009_264_a11 ER -