M. Pick

Random Walk of Magnetic Lines of Force in Astrophysics

Propagation of cosmic rays in the solar wind

Particle acceleration at astrophysical shocks: A theory of cosmic ray origin

Shock‐associated low‐energy ion enhancements observed by Voyagers 1 and 2

Protons associated with centers of solar activity and their propagation in interplanetary magnetic field regions corotating with the Sun