Favre, C., Ceccarelli, C., López-Sepulcre, A., Fontani, F., Neri, R., Manigand, S., et al. (2018). SOLIS IV - Hydrocarbons in the OMC-2 FIR4 region, a probe of energetic particle irradiation of the region. The Astrophysical Journal, 859(2): 136. doi:10.3847/1538-4357/aabfd4.