Luján R, Roberts JD, Shigemoto R, Ohishi H, Somogyi P (1997) Differential plasma membrane distribution of metabotropic glutamate receptors mGluR1 alpha, mGluR2 and mGluR5, relative to neurotransmitter release sites. Journal of Chemical Neuroanatomy 13(4):219-41.
http://www.ncbi.nlm.nih.gov/pubmed/9412905