no. 3-4
On products of non-commuting sectorial operators
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 27 (1998) no. 3-4, pp. 499-531. 
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     title = {On products of non-commuting sectorial operators},
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     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 27},
     number = {3-4},
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     mrnumber = {1677994},
     zbl = {0935.47028},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1998_4_27_3-4_499_0/}
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Weber, Frank. On products of non-commuting sectorial operators. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 27 (1998) no. 3-4, pp. 499-531. http://www.numdam.org/item/ASNSP_1998_4_27_3-4_499_0/

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