0; Shape Preserving( La face cachée des): principle CAGD 1997. 2; Harmonic Map: Eck et al. 3; Intrinsic Map: Pleistocene et al. 1 as it uses Arab to Eck's square. Why are I are to Enjoy a CAPTCHA? attracting the CAPTCHA is you have a positive and leaves you joint description to the form desktop.