@article{AIF_1984__34_3_155_0, author = {Bratteli, Ola and Jorgensen, Palle E. T. and Kishimoto, Akitaka and Robinson, Donald W.}, title = {A $C^*$-algebraic {Schoenberg} theorem}, journal = {Annales de l'Institut Fourier}, pages = {155--187}, publisher = {Institut Fourier}, address = {Grenoble}, volume = {34}, number = {3}, year = {1984}, doi = {10.5802/aif.981}, zbl = {0536.46046}, mrnumber = {86b:46105}, language = {en}, url = {https://aif.centre-mersenne.org/articles/10.5802/aif.981/} }