X. Araneda, R. Caniullan, C. Catalán, M. Martínez, D. Morales, and M. Rodríguez, “Nutritional contribution of pollen from species pollinated by bees (Apis mellifera L.) in the Araucanía Region of Chile”, Rev. FCA UNCUYO, vol. 47, no. 1, pp. 139–144, Jun. 2015.