Klimov, S., Büchner, Jörg, & others (1992). Role of the INTERBALL small scale investigations
in the GGS program. In Proc. of the 26th ESLAB Symposium ``Study of the Solar-Terrestrial System'',
Killarney, Ireland, June 1992 (pp. 295-299). Noordwijk, The Netherlands: ESA Publ. Div.