1. R. Naz, D.P. Mason, F.M. Mahomed, Conservation laws and physical conserved quantities for laminar two-dimensional and radial jets, J. Nonlinear Anal. B: Real World Appl., submitted for publication.
2. Invariante Variationsprobleme;Noether;Nacr. Konig. Gesell. Wissen., Gottingen, Math.-Phys. Kl. Heft,1918
3. P.S. Laplace (English translation, Celestrial Mechanics, New York, 1966), 1798.
4. Uber die zuordnung zwischen invarianzeigenschaften und erhaltungssatzen;Steudel;Z. Naturforsch.,1962
5. Applications of Lie Groups to Differential Equations;Olver,1993