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Lepowsky, J., Robert L. Wilson, Yi-Zhi Huang, and Kailash C. Misra. Lie Algebras, Vertex Operator Algebras and Their Applications: International Conference in Honor of James Lepowsky and Robert Wilson on Their Sixtieth Birthdays, May 17-21, 2005, North Carolina State University, Raleigh, North Carolina. Providence, Rhode Island: American Mathematical Society, 2007.

Lepowsky, J., et al. Lie Algebras, Vertex Operator Algebras and Their Applications: International Conference in Honor of James Lepowsky and Robert Wilson on Their Sixtieth Birthdays, May 17-21, 2005, North Carolina State University, Raleigh, North Carolina. American Mathematical Society, 2007.