A STUDY OF MULTI-JET EVENTS IN E+E- ANNIHILATION - BERGER, C; GENZEL, H; GRIGULL, R; LACKAS, W; RAUPACH, F; KLOVNING, A; LILLESTOL, E; SKARD, JA; ACKERMANN, H; BURGER, J; CRIEGEE, L; DEHNE, HC; et al. (Physics Letters b, 1980)