@article{10_4064_fm_51_2_131_140,
     author = {K. Urbanik},
     title = {Reversibility in absolute-valued algebras},
     journal = {Fundamenta Mathematicae},
     pages = {131--140},
     publisher = {mathdoc},
     volume = {51},
     number = {2},
     year = {1962},
     doi = {10.4064/fm-51-2-131-140},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-51-2-131-140/}
}