Destruction of dimethyl ether and methyl formate by collisions with He+ Daniela Ascenzi, Andrea Cernuto, Nadia Balucani, Paolo Tosi, Cecilia Ceccarelli, Luca Matteo Martini and Fernando Pirani A&A, 625 (2019) A72 Published online: 15 May 2019 DOI: 10.1051/0004-6361/201834585