1. The behaviour of isotropic and anisotropic cosmic ray components through March–June 1991;Belov,1994
2. Ulysses observations of the solar wind during March and June 1991;Hammond,1994
3. The modulation spectrum of cosmic ray variations during 19–22 cycle of the Sun;Belov,1993
4. High energy cosmic ray modulation in March–June 1991;Shea,1993
5. Cosmic ray intensity in four successive sunspot maxima;Bazilevskaya,1993