Chakraborty, A., and A. Narayan. “Influence of Poynting-Robertson Drag and Oblateness on Existence and Stability of Out of Plane Equilibrium Points in Spatial Elliptic Restricted Three Body Problem”. Journal of Informatics and Mathematical Sciences, vol. 10, no. 1-2, Apr. 2018, pp. 55 - 72, doi:10.26713/jims.v10i1-2.674.