Ghirardini Maria Pia "The importance of a taste. A comparative study on wild food plant consumption in twenty-one local communities in Italy."J Ethnobiol Ethnomedicine. 2007; 3: 22. Published online 2007 May 4. doi: 10.1186/1746-4269-3-22 "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1877798/?tool=pmcentrez