A new radio molecular line survey of planetary nebulae - HNC/HCN as a diagnostic of ultraviolet irradiationJ. Bublitz, J. H. Kastner, M. Santander-García, V. Bujarrabal, J. Alcolea and R. MontezA&A, 625 (2019) A101DOI: https://doi.org/10.1051/0004-6361/201834408
