Shepherd, G. M. 2004. The human sense of smell: are we better than we think? PLoS Biology 2(5): e146.
81
Deibler, K. D. & Delwiche, J. (eds) 2004. Handbook of Flavor Characterization: Sensory Analysis, Chemistry, and Physiology. Marcel Dekker, Inc., Monticello, New York, p. 187.
