no. 1
On the irreducibility and inequivalence of unitary representations of gauge groups
Compositio Mathematica, Tome 64 (1987) no. 1, pp. 3-29. 
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     author = {Wallach, Nolan R.},
     title = {On the irreducibility and inequivalence of unitary representations of gauge groups},
     journal = {Compositio Mathematica},
     pages = {3--29},
     publisher = {Martinus Nijhoff Publishers},
     volume = {64},
     number = {1},
     year = {1987},
     mrnumber = {911356},
     zbl = {0632.22014},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1987__64_1_3_0/}
}
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Wallach, Nolan R. On the irreducibility and inequivalence of unitary representations of gauge groups. Compositio Mathematica, Tome 64 (1987) no. 1, pp. 3-29. http://archive.numdam.org/item/CM_1987__64_1_3_0/

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