Polygenic functions in general analysis
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 2, Tome 9 (1940) no. 2, p. 97-107 
@article{ASNSP_1940_2_9_2_97_0,
     author = {Michal, Aristotle D. and Davis, Roderick and Wyman, Max},
     title = {Polygenic functions in general analysis},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     publisher = {Scuola normale superiore},
     volume = {Ser. 2, 9},
     number = {2},
     year = {1940},
     pages = {97-107},
     zbl = {0023.13104},
     mrnumber = {5781},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1940_2_9_2_97_0}
}

Michal, Aristotle D.; Davis, Roderick; Wyman, Max. Polygenic functions in general analysis. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 2, Tome 9 (1940) no. 2, pp. 97-107. http://www.numdam.org/item/ASNSP_1940_2_9_2_97_0/

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