00358nam a2200109Ia 4500008004100000082001900041100003800060245001400098260003900112630002800151650006900179211122s9999||||xx |||||||||||||| ||und||  a516.353bARZ-C  aArzhantsev, Ivan/Ulrich Derenthal 0aCox Rings  bCambridge University PressaLondon  xPost Graduate Reference  aMathematicsvNATURAL SCIENCES AND MATHEMATICSMATHEMATICSGEOMETRY