@article{CMH_1950__24_139002,
     author = {Alan Rose},
     title = {On the use of a complex {(Quaternion)} velocity potential in three dimensions.},
     journal = {Commentarii mathematici Helvetici},
     pages = {135--148},
     publisher = {mathdoc},
     volume = {24},
     year = {1950},
     zbl = {0038.05703},
     url = {http://geodesic.mathdoc.fr/item/CMH_1950__24_139002/}
}