1. Cosmic ray anisotropies perpendicular to the equatorial plane;Duggal;Proc. Int. Conf. Cosmic Rays, 12th,1971
2. Origin of transient north-south anisotropy of cosmic rays;Duggal;J. Geophys, Res.,1976
3. Cosmic ray intensity pulses;Duggal;J. Geophys. Res.,1979
4. Enhanced isotropic cosmic ray intensity waves during cosmic ray storms;Duggal;J. Geophys. Res.,1979
5. Transient north-south anisotropies in the cosmic ray intensity;Mercer;Proc. Int. Conf. Cosmic Rays, 12th,1971