1. Adams, D.R.: Sobolev Spaces. Academic Press, New York (1975)
2. Bertoin, J.: Lévy Processes, p. 121. Cambridge University Press, Cambridge Tracts in Mathematics, Cambridge (1996)
3. Brezis, H., Cazenave, T.: A nonlinear heat equation with singular initial data. J. D’Anal. Math. 68, 73–90 (1996)
4. Christ, M., Weinstein, M.: Dispersion of small amplitude solutions of the generalized Korteweg–de Vries equation. J. Funct. Anal. 100, 87–109 (1991)
5. Giona, M., Roman, H.E.: Fractional diffusion equation for transport phenomena in random media. J. Phys. A 185(1–4), 87–97 (1992)