TY - BOOK AU - Bajaj Narendra Kumar AU - Tandon J N Gu. AU - University of Delhi. Faculty of Science. Department of Physics and Astrophysics ED - University of Delhi. Faculty of Science. Department of Physics and Astrophysics TI - Tagne to gravitational instability and wave propagation in collision free plasmas PY - 1989/// CY - Delhi PB - University of Delhi India KW - PHYSICS ER -