1. J. B. Harborne, Chemosysternatics and coevolution, Pure and Appl. Chem. 49: 1403 (1977).
2. D. Miiller-Schwarze and M. M. Mozell, “Chemical Signals in Vertebrates,” Plenum Press, New York (1977).
3. A. Kjaer, Low molecular weight sulphur-containing compounds in nature: a survey, Pure and Appl. Chem. 49: 137 (1977).
4. G. Ohloff and I. Flament, The role of heteroatomic substances in the aroma compounds of food stuffs, in “Progress in the Chemistry of Organic Natural Products,” vol. 36, W. Herz, H. Grisebach, and G. W. Kirby, eds., Springer-Verlag, Vienna (1979).
5. A. G. Singer, W. C. Agosta, R. J. O’Connell, C. Pfaffmann, D. V. Bowen, and F. H. Field, Dimethyl disulfide: an attractant pheromone in hamster vaginal secretion, Science 191: 948 (1976).