Brain Transcriptome Database (BrainTx)http://rdf.ncbi.nlm.nih.gov/pubmed/

S L. Sullivan, et.al., The chromosomal distribution of mouse odorant receptor genes., Proceedings of the National Academy of Sciences of the United States of America, 1996, 93
http://rdf.ncbi.nlm.nih.gov/pubmed/8570653