1. M. Abramowitz & I. E. Stegun [1968], Handbook of Mathematical Functions, Dover, New York.
2. R. S. Adams [1975], Sobolev Spaces, Academic Press, New York.
3. S. Agmon [1965], Lectures on Elliptic Boundary Value Problems, Mathematical Studies, Van Nostrand, New York.
4. P. Constantin [1989], Remarks on the Navier-Stokes equations. Proceedings of the Newport Conference on Turbulence, June 1989 (to appear).
5. P. Constantin & C. Foias [1988], Navier-Stokes Equations, The University of Chicago Press, Chicago.