Joong-Hyun Rhim, Doo-Yeoun Cho, Kyu-Yeul Lee, and Tae-Wan Kim, Generation of Discrete Bicubic G^1 B-spline Ship Hullform Surfaces from a Given Curve Network Using Virtual Iso-Parametric Curves, Journal of Computer Science and Technology (SCIE), Vol. 21, No. 2, pp. 265- 271, March 2006.