C. Liu and H. Liu,

Boundary conditions for the microscopic FENE models, preprint

H. Liu
Global orientation dynamics for liquid crystalline polymers, Physica D. 228 (2007), 122-129.

H. Liu, H. Zhang and P.W. Zhang
Axial Symmetry and Classification of Stationary Solutions of  Doi-Onsager Equation on the Sphere with Maier-Saupe Potential, Comm. Math. Sci. 3 (2), (2005), 201-218.