Acher, F., Battaglia, G., Bräuner-Osborne, H., Conn, P. J., Duvoisin, R., Ferraguti, F., Flor, P. J., Goudet, C., Gregory, K. J., Hampson, D., Johnson, M. P., Kubo, Y., Monn, J., Nakanishi, S., Nicoletti, F., Niswender, C., Pin, J.-P., Rondard, P., Schoepp, D. D., Shigemoto, R. and Tateyama, M. (2019) “Metabotropic glutamate receptors (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database”, IUPHAR/BPS Guide to Pharmacology CITE, 2019(4). doi: 10.2218/gtopdb/F40/2019.4.