An investigation into the skeletonization approach of hilditch. - Nabil Jean Naccache; Rajjan Shinghal (Pattern Recognit., 1984)

SPTA: A proposed algorithm for thinning binary patterns. - Nabil Jean Naccache; Rajjan Shinghal (IEEE Trans. Syst. Man Cybern., 1984)

In response to "a comment on an investigation into the skeletonization approach of hilditch". - Nabil Jean Naccache; Rajjan Shinghal (Pattern Recognit., 1986)