2Kroll G R,Frears E R,Bayliss A.An oxygen electrode based assay of catalase activity as a rapid method for estimating the bacterial content of foods[J].Journal of Applied Bacteriology,1989,66:209-217.
3Smith E A,Sokhansanj S.Moisture transport caused by natural convection in grain stores[J].Journal of Agricultural Engineering Research,1990,47(1):23-24.