@article{JRAM_1996__474_153814,
     author = {J. Hilgert and K.-H. Neeb and Bent Orsted},
     title = {Conal {Heisenberg} algebras and associated {Hilbert} spaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {67--112},
     publisher = {mathdoc},
     volume = {474},
     year = {1996},
     zbl = {0862.22011},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1996__474_153814/}
}