TY - JOUR A1 - Hillen, Walter T1 - Evidence for planar events in e+e− annihilation at high energies. TASSO Collaboration T2 - Physics Letters B. 86 (1979), H. 2 Y1 - 1979 UR - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/2592 SN - 0370-2693 SP - 243 EP - 249 ER -