8Ragnar M,Backa S.Hot chlorine dioxide blaching a modified approach[J].Nordic Pulp Paper Res J,2004,19(4):417-419.
9Mendiratta S K. Ultralow AOX bleaching via chlorine free chlofine dioxide[C]. Proceed 79^th Annual Meet, Techn Sect, CPPA, Montreal, 1993:193.
10Parthasarathy V R. Modified chlorine dioxide delignification of softwood pulps for high brightness and ultra-low AOX[J]. Tappi J, 1 996,79(5): 171-179.