The Plancherel Formula for the Universal Covering Group of SL(R,2). L. PUKANSZKY — 1964 Mathematische Annalen
Symplectic strucutre on generalized orbits of solvable Lie groups. L. Pukanszky — 1984 Journal für die reine und angewandte Mathematik
Action of algebraic groups of automorphisms on the dual of a class of type I groups L. Pukanszky — 1972 Annales scientifiques de l'École Normale Supérieure
Unitary representations of solvable Lie groups L. Pukanszky — 1971 Annales scientifiques de l'École Normale Supérieure