@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20100706-153522794, title = "Algebraic Aspects of Integrable Systems", chapter = "Complex Billiard Hamiltonian Systems and Nonlinear Waves", year = "1997", url = "https://resolver.caltech.edu/CaltechAUTHORS:20100706-153522794", id = "record", isbn = "0817638350" }