@article{PORMA_1963__22_3_114905,
     author = {Mott, Thomas E.},
     title = {Functions of self adjoint transformations as integrals},
     journal = {Portugaliae mathematica},
     pages = {161--165},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1963},
     mrnumber = {0217633},
     zbl = {0199.45503},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1963__22_3_114905/}
}