1. Cannel E, Moo-Young M (1980) Solid state fermentation system. Process Biochem 15:2?7
2. Cross BE, Galt RHB, Hanson JR, Curtis PJ, Grove JF, Marrison A (1963) New metabolites of Gibberella fujikuroi II. J Chem Soc 2937?2943
3. Cross BE, Galt RHB, Hanson JR (1964) British Patent no. 957,634
4. Gancheva V, Dimova TS (1984) Biosynthesis of gibberellins using mathematical methods for planning experiments. Acta Microbiol Bulg 14:80?84
5. Hesseltine CW (1977) Solid state fermentation. Process Biochem 12:24?27