Kimura Y, Nakazawa M, Tsuchiya N, Asakawa S, Shimizu N, Yamada M (Dec 1997). "Genomic organization of the OS-9 gene amplified in human sarcomas". Journal of Biochemistry. 122 (6): 1190–5. doi:10.1093/oxfordjournals.jbchem.a021880. PMID9498564.
Kimura Y, Nakazawa M, Tsuchiya N, Asakawa S, Shimizu N, Yamada M (Dec 1997). "Genomic organization of the OS-9 gene amplified in human sarcomas". Journal of Biochemistry. 122 (6): 1190–5. doi:10.1093/oxfordjournals.jbchem.a021880. PMID9498564.