On the chemical ladder of esters - Detection and formation of ethyl formate in the W51 e2 hot molecular coreV. M. Rivilla, M. T. Beltrán, J. Martín-Pintado, F. Fontani, P. Caselli and R. CesaroniA&A, 599 (2017) A26DOI: https://doi.org/10.1051/0004-6361/201628823
