no. 3-4
On the Legendre and Laplace transformations
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 25 (1997) no. 3-4, pp. 517-568. 
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     title = {On the {Legendre} and {Laplace} transformations},
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     mrnumber = {1655531},
     zbl = {1016.44003},
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Hörmander, Lars. On the Legendre and Laplace transformations. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 25 (1997) no. 3-4, pp. 517-568. http://www.numdam.org/item/ASNSP_1997_4_25_3-4_517_0/

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