An action-research exploration of value chain development from field to consumer based on organic hempseed oil in SicilyLuca Colombo, Giovanni Dara Guccione, Stefano Canali, Ileana Iocola, Clémentine Antier et Kevin MorelOCL, 27 (2020) 56DOI: https://doi.org/10.1051/ocl/2020049