@article{MS2_1978__42_166594,
     author = {H. Behncke and W. B\"os},
     title = {JB algebras with an exceptional ideal.},
     journal = {Mathematica Scandinavica},
     pages = {306--312},
     year = {1978},
     volume = {42},
     zbl = {0393.46039},
     url = {http://geodesic.mathdoc.fr/item/MS2_1978__42_166594/}
}