[en] Nuclear structure studies in the A approx. 150 region by γ-ray spectroscopy following heavy ion induced reactions are summarized. Yrast states of N = 82 nuclei close to the proton drip line have been identified as rather pure (πh/sub 11/2)/sup n/ excitations of seniority 2 and 3. The high-spin level structure of ¹⁵⁴Dy has been determined through the ¹²⁴Sn(³⁴S,4nγ) reaction. Both the structure and the level lifetimes indicate a transition at I approx. 32 from collective to few-particle character, with possible shape changes from prolate-to-triaxial-to-oblate