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Kim, Byung-Taek, Hiroshi Kitagawa, Jun-ichi Tamura, Toshiyuki Saito, Marion Kusche-Gullberg, Ulf Lindahl, and Kazuyuki Sugahara. "Human Tumor Suppressor EXT Gene Family Members EXTL1 and EXTL3 Encode α1,4- N-acetylglucosaminyltransferases That Likely Are Involved in Heparan Sulfate/ Heparin Biosynthesis." Proc Natl Acad Sci U S A 2001.

Kim, Byung-Taek, et al. "Human Tumor Suppressor EXT Gene Family Members EXTL1 and EXTL3 Encode α1,4- N-acetylglucosaminyltransferases That Likely Are Involved in Heparan Sulfate/ Heparin Biosynthesis." Proc Natl Acad Sci U S A 2001.