Kang, I. S.; L. G. Leal (1987). "Numerical Solution of Axisymmetric Unsteady Free-Boundary Problems at Finite Reynolds Number. I. Finite difference Scheme and its Application to the Deformation of a Bubble in a Uniaxial Straining Flow". Phys. Fluids. 30 (7): 1929–1940. Bibcode:1987PhFl...30.1929K. doi:10.1063/1.866207.
Kang, I. S.; L. G. Leal (1987). "Numerical Solution of Axisymmetric Unsteady Free-Boundary Problems at Finite Reynolds Number. I. Finite difference Scheme and its Application to the Deformation of a Bubble in a Uniaxial Straining Flow". Phys. Fluids. 30 (7): 1929–1940. Bibcode:1987PhFl...30.1929K. doi:10.1063/1.866207.