@article{701463,
     title = {A quaternionic treatment of Navier-Stokes equations},
     booktitle = {Proceedings of the Winter School "Geometry and Physics"},
     series = {GDML\_Books},
     publisher = {Circolo Matematico di Palermo},
     address = {Palermo},
     year = {1990},
     pages = {[77]-95},
     mrnumber = {MR1061790},
     zbl = {0751.76022},
     url = {http://dml.mathdoc.fr/item/701463}
}

Gürlebeck, Klaus; Sprössig, Wolfgang. A quaternionic treatment of Navier-Stokes equations, dans Proceedings of the Winter School "Geometry and Physics", GDML_Books,  (1990), pp. [77]-95. http://gdmltest.u-ga.fr/item/701463/