1. Agrawal, S. P.: 1981, J. Geophys. Res. 86, 10115
2. Agrawal, S. P. and Ananth, A. G.: 1973, Proc. 13th Intern. Conf. on cosmic rays, Denver
2, 1005
3. Agrawal, S. P. and Bercovitch, M.: 1980, EOS (Trans. Am. Geophys. Union)
61, 328
4. Agrawal, S. P., Lanzerotti, L. J., Venkatesan, D., and Hansen, E. T.: 1980, J. Geophys. Res. 85, 6845
5. Ahluwalia, H. S.: 1981, Advances in Space Research
(COSPAR)
1, (No. 3), 151