Fredholm, B. B., B. G. Frenguelli, R. Hills, A. P. IJzerman, K. A. Jacobson, K.-N. Klotz, J. Linden, C. E. Müller, U. Schwabe, and G. L. Stiles. “Adenosine Receptors in GtoPdb V.2021.2”. IUPHAR/BPS Guide to Pharmacology CITE, Vol. 2021, no. 2, June 2021, doi:10.2218/gtopdb/F3/2021.2.