Axford, W. I. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Axford, W. I. (1998). COSPAR during the period 1986-1994. In G. Haerendel, S. Grzedzielski, G. Cavallo, & B. Battrick (Eds.), 40 Years of COSPAR (pp. 131-137). Noordwijk: ESA Publ. Div.