Ramírez-Sanchez, R., H. Ruiz-Estrada, and O. Alarcón-Waess. “Orientational Distribution for Dipolar and Quadrupolar Colloids Driven by an External Field”. Revista Mexicana De Física, vol. 58, no. 1, Jan. 2012, pp. 104-12, https://rmf.smf.mx/ojs/index.php/rmf/article/view/3890.