no. 3
Almost-periodic solutions of parabolic systems
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 3, Tome 15 (1961) no. 3, pp. 247-262. 
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     author = {Foia\c{s}, Ciprian and Zaidman, Samuel},
     title = {Almost-periodic solutions of parabolic systems},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {247--262},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 15},
     number = {3},
     year = {1961},
     zbl = {0100.30303},
     mrnumber = {133517},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1961_3_15_3_247_0/}
}
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Foias, C.; Zaidman, S. Almost-periodic solutions of parabolic systems. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 3, Tome 15 (1961) no. 3, pp. 247-262. http://www.numdam.org/item/ASNSP_1961_3_15_3_247_0/

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