D. Rodríguez de la Cruz, E. Sánchez Reyes, S. Sánchez Durán, and J. Sánchez Sánchez, “Palynological analysis of unifloral commercial honeys”, Bot. complut., vol. 37, pp. 171–180, May 2013, doi: 10.5209/rev_BOCM.2013.v37.42278.