1. Spectral resolution of groups of unitary operators;Ambrose, Warren;Duke Math. J.,1944
2. The 𝐿₂-system of a unimodular group. I;Ambrose, W.;Trans. Amer. Math. Soc.,1949
3. Irreducible unitary representations of the Lorentz group;Bargmann, V.;Ann. of Math. (2),1947
4. Beiträge zur Theorie der fastperiodischen Funktionen;Bochner, S.;Math. Ann.,1927
5. 5. S. Bochner, Vorlesungen über Fouriersche Integrale, Leipzig, Akad. Verlagsges., 1932.