1. Anderson, D. J. (1971) Spatial patterns in some Australian dryland plant communities. InStatistical ecology, Vol. 1 (ed. byG. P. Patil et al.), pp. 271–286. Penn. State Univ. Press, University Park and London.
2. Bartlett, M. S. (1971) Two-dimensional nearest-neighbor systems and their ecological applications. InStatistical ecology, Vol. 1 (ed. byG. P. Patil et al.), pp. 179–194. Penn. State Univ. Press, University Park and London.
3. Burrage, R. H. andG. G. Gyrisco (1954) Distribution of third instar larvae of the European chafer and the efficiency of various sampling units for estimating their populations.J. econ. Ent. 47: 1009–1014.
4. Cain, S. A. andF. C. Evans (1952) The distribution patterns of three plant species in an old-field community in Southeastern Michigan.Contr. Lab. Vertebr. Biol., Uuiv. Michigan, No. 52: 1–15.
5. Evans, F. C. (1952) The influence of size of quadrat on the distribution patterns of plant populations.Contr. Lab. Vertebr. Biol., Univ. Michigan, No. 54: 1–10.