TY - JOUR A1 - Hillen, Walter T1 - Search for new sequential leptons in e+e- annihilation at petra energies. TASSO Collaboration T2 - Physics Letters B. 99 (1981), H. 2 Y1 - 1981 UR - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/2580 SN - 0370-2693 SP - 163 EP - 168 ER -