Eigenfunctions of the laplacian, quantum chaos, and computation
Journées équations aux dérivées partielles (1995), article no. 7, 11 p. 
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     title = {Eigenfunctions of the laplacian, quantum chaos, and computation},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {7},
     pages = {1--11},
     publisher = {Ecole polytechnique},
     year = {1995},
     mrnumber = {1360476},
     zbl = {0948.35507},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1995____A7_0/}
}
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Hejhal, Dennis A. Eigenfunctions of the laplacian, quantum chaos, and computation. Journées équations aux dérivées partielles (1995), article  no. 7, 11 p. http://archive.numdam.org/item/JEDP_1995____A7_0/

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