Hejhal, D. A. (1992). Eigenvalues of the Laplacian for Hecke triangle groups. American Mathematical Society.
Chicago Style (17th ed.) CitationHejhal, Dennis A. Eigenvalues of the Laplacian for Hecke Triangle Groups. Providence: American Mathematical Society, 1992.
MLA (9th ed.) CitationHejhal, Dennis A. Eigenvalues of the Laplacian for Hecke Triangle Groups. American Mathematical Society, 1992.