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). Feira de Santana, Brazil:558-65. https://doi.org/10.13102/sociobiology.v65i4.3442.