1. M. C. Birch (Ed.), Pheromones, North-Holland Publishing Company, Amsterdam, 1974.
2. R. L. Doty, Mammalian Olfaction, Reproductive Processes and Behavior, Academic Press, New York and London, 1976.
3. D. Müller-Schwarze and M. M. Mozell (Eds.), Chemical Signals in Vertebrates, Plenum Press, New York, 1977.
4. R. Mykytowycz and B.S. Goodrich, J. Invest. Derm., 62, 124, 1974.
5. J. D. Sink, J. theor. Biol., 17, 174, 1967.