Okuyama M, Kaneko A, Mori H, Chiba S, Kimura A (May 2006). "Structural elements to convert Escherichia coli alpha-xylosidase (YicI) into alpha-glucosidase". FEBS Letters. 580 (11): 2707–11. doi:10.1016/j.febslet.2006.04.025. PMID16631751.
Okuyama M, Kaneko A, Mori H, Chiba S, Kimura A (May 2006). "Structural elements to convert Escherichia coli alpha-xylosidase (YicI) into alpha-glucosidase". FEBS Letters. 580 (11): 2707–11. doi:10.1016/j.febslet.2006.04.025. PMID16631751.