1. L. Spitzer, Physical Processes in the Interstellar Medium (Willey, New York, 1978).
2. Dust and Chemistry in Astronomy, Ed. by T. J. Millar and D. A. Williams (IOP, Bristol, 1993), Vol. 2.
3. A. Evans, The Dusty Universe (Wiley, New York, 1994).
4. P. K. Shukla, Phys. Scr. 77, 068201 (2008).
5. H. Alfvén, Cosmic Plasma (Reidel, Dordrecht, 1981).