TY - BOOK AU - Munjal Hema AU - Prof. K. L. Baluja 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 - Electron scattering with tri - atomic and tetra - atomic molecules using r - matrix method PY - 2009/// KW - PHYSICS ER -