Cejas, Diego, Concepción Ornosa, Irene Muñoz, and Pilar De la Rua. 2018. “Searching for Molecular Markers to Differentiate Bombus Terrestris (Linnaeus) Subspecies in the Iberian Peninsula”. Sociobiology 65 (4):558-65. https://doi.org/10.13102/sociobiology.v65i4.3442.