Approximation of Fuchsian Groups and Automorphic Forms of Dimension 2 .
T. MetzgerK. Rajeswara Rao
Indiana University Mathematics Journal
1972
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10.1512/iumj.1972.21.21075
10.1512/iumj.1972.21.21075
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Indiana Univ. Math. J. 21 (1972) 937 - 949
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