Stefano CecchiniN. Martinić2026-03-222026-03-22197510.1007/bf02737673https://doi.org/10.1007/bf02737673https://andeanlibrary.org/handle/123456789/63169enPhysicsSteady state (chemistry)Solar windInterplanetary spaceflightComputational physicsDiffusionMechanicsClassical mechanicsInterplanetary propagation of steady solar injected particlesarticle