For details on the computation in English language please have a look at:
Maier, Andreas; Hönig, Florian; Bocklet, Tobias; Nöth, Elmar; Stelzle, Florian; Nkenke, Emeka; Schuster, Maria
Automatic detection of articulation disorders in children with cleft lip and palate.
In: Journal of the Acoustical Society of America 126 (2009) No. 5 pp. 2589-2602
Speech of Children with Cleft Lip and Palate: Automatic Assessment
Berlin: Logos, 2009
This is a free web site to compute statistical analyses online.
Please find an overview on other computations on this website.
Andreas Maier and Florian Hönig, 2009