1. Adler, K. and Pelkie, C.R., 1985. Human homing orientation: critique and alternative hypotheses. in “Magnetite Biomineralization and Magnetoreception in Organisms: A new Magnetism”. J. L. Kirschvink, D. S. Jones and B. J. MacFadden (Eds.), Plenum, New York.
2. Baker, R. R., 1978. “The Evolutionary Ecology of Animal Migration”. Hodder and Stoughton, London.
3. Baker, R. R., 1980. Goal orientation by blindfolded humans after long-distance displacement: possible involvement of a magnetic sense. Science, 210: 555–557.
4. Baker, R. R., 1981. “Human Navigation and the Sixth Sense”. Hodder and Stoughton, London.
5. Baker, R. R., 1982. “Migration: paths through time and space”. Hodder and Stoughton, London.