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@article{MAN_1988__282_2_164479, author = {S. Kantorovitz and R. J. Hughes}, title = {Spectral {Representations} for {Unbounded} {Operators} with {Real} {Spectrum.}}, journal = {Mathematische Annalen}, pages = {535--544}, publisher = {mathdoc}, volume = {282}, number = {2}, year = {1988}, zbl = {0632.47030}, url = {http://geodesic.mathdoc.fr/item/MAN_1988__282_2_164479/} }
S. Kantorovitz; R. J. Hughes. Spectral Representations for Unbounded Operators with Real Spectrum.. Mathematische Annalen, Tome 282 (1988) no. 2, pp. 535-544. http://geodesic.mathdoc.fr/item/MAN_1988__282_2_164479/