S. Y. Chen, P. E. Lestrel, W. J. Kerr, and J. H. Mccoll, Describing shape changes in the human mandible using elliptical Fourier functions, The European Journal of Orthodontics, vol.22, issue.3, pp.205-216, 2000.
DOI : 10.1093/ejo/22.3.205

M. R. Daliri and T. V. , Robust symbolic representation for shape recognition and retrieval, Pattern Recognition, vol.41, issue.5, pp.41-1782, 2008.
DOI : 10.1016/j.patcog.2007.10.020

D. L. Royer, L. A. Meyerson, and K. M. Robertson, Phenotypic Plasticity of Leaf Shape along a Temperature Gradient in Acer rubrum, PLoS ONE, vol.83, issue.10, p.7653, 2009.
DOI : 10.1371/journal.pone.0007653.s001

D. Sarkar, A. Srimany, and T. Pradeep, Rapid identification of molecular changes in tulsi (Ocimum sanctum Linn) upon ageing using leaf spray ionization mass spectrometry, The Analyst, vol.80, issue.19, pp.137-4559, 2012.
DOI : 10.1039/c2an35655d

E. Franz, M. R. Gebhardt, and K. B. Unklesbay, SHAPE DESCRIPTION OF COMPLETELY VISIBLE AND PARTIALLY OCCLUDED LEAVES FOR IDENTIFYING PLANTS IN DIGITAL IMAGES, Transactions of the ASAE, vol.34, issue.2, 1991.
DOI : 10.13031/2013.31716

Y. Sato, T. Kumagai, and A. Kume, Experimental analysis of moisture dynamics of litter layers?the effects of rainfall conditions and leaf shapes ?A Leaf Vein Extraction Method Based On Snakes Technique, Hydrological Processes International Conference on Neural Networks and Brain 2005, pp.18-3007, 2004.

A. H. Gunawardena, J. S. Greenwood, and N. Dengler, Programmed cell death remodels lace plant leaf shape during development[J]. The Plant Cell Online, pp.60-73, 2004.
DOI : 10.1105/tpc.016188
URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC301395

S. Mori and A. Hagihara, Crown profile of foliage area characterized with the Weibull distribution in a hinoki (Chamaecyparis obtusa) stand, Trees, vol.5, issue.3, pp.149-152, 1991.
DOI : 10.1007/BF00204336