@article{01992727, title = {Liouville's theorem in a pseudo-conformal space.}, journal = {Mathematica Pannonica}, volume = {14}, year = {2003}, pages = {71-100}, zbl = {1026.30020}, language = {en}, url = {http://dml.mathdoc.fr/item/01992727} }
Schleiermacher, Adolf. Liouville's theorem in a pseudo-conformal space.. Mathematica Pannonica, Tome 14 (2003) pp. 71-100. http://gdmltest.u-ga.fr/item/01992727/