Discrete Source Survey of 6 GHz OH emission from PNe and pPNe and first 6 GHz images of K 3–35J.-F. Desmurs, A. Baudry, P. Sivagnanam, C. Henkel, A. M. S. Richards and I. BainsA&A, 520 (2010) A45DOI: https://doi.org/10.1051/0004-6361/200913387