Martín Martín, J.M., Ruiz Martos, M.J., Morales Pachón, A. and Calvo Martínez, S. 2022. Exploring what motivates the development of upcycling practices.: The making of values and principles. Ecological Questions. 33, 4 (Jul. 2022), 141–152. DOI:https://doi.org/10.12775/EQ.2022.035.