Selinger, J., & Nelson, D. (1988). Density-functional theory of nematic and smectic-A order near surfaces. Physical Review A. https://doi.org/10.1103/physreva.37.1736
Selinger, Jonathan, and David Nelson. 1988. “Density-Functional Theory of Nematic and Smectic-A Order Near Surfaces”. Physical Review A. https://doi.org/10.1103/physreva.37.1736.
Selinger, J., and D. Nelson. Density-Functional Theory of Nematic and Smectic-A Order Near Surfaces. Physical Review A, Mar. 1988, doi:10.1103/physreva.37.1736.