Teulings, H.L., & Thomassen, A.J.W.M. (1979). Computer-aided analysis of handwriting movements. Visible Language, 13, 218-231.

Thomassen, A.J.W.M., & Teulings, H.L. (1979). The development of directional preference in writing movements. Visible Language, 13, 299-313.
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ALSO PUBLISHED AS:
Thomassen, A.J.W.M., & Teulings, H.L. (1984). The development of directional preference in writing movements. In W.B Barbe, V.H. Lucas, & T.M. Wasylyk (Eds.), Handwriting: Basic skills for effective communication (pp. 367-376). Columbus, Ohio: Zaner-Bloser.
DOWNLOAD FULL TEXT Thomassen_Teulings_ZanerBloser1984a.pdf