The failure of the topological Frobenius property for nilpotent Lie groups. Ole A. Nielsen (1979) Mathematica Scandinavica
The Rockland condition for nondifferential convolution operators II Paweł Głowacki (1991) Studia Mathematica
Topological Frobenius properties for nilpotent groups. Eberhard Kaniuth, Mohammed E.B. Bekka (1988) Mathematica Scandinavica
Topological Frobenius properties for nilpotent groups. II. Eberhard Kaniuth (1991) Mathematica Scandinavica
Ultra-irreducibility of induced representations. Henrik Stetkaer, Jacob Jacobsen (1991) Mathematica Scandinavica
Weak Containment and Tensor Products of Group Representations. II. Eberhard Kaniuth (1985) Mathematische Annalen
Zerlegung von Distributionen, die unter einer unipotenten Gruppenopération invariant sind. Rainer Felix (1980) Commentarii mathematici Helvetici