1)鈥淏lack holes in massive gravity: Quasi-normal modes of scalar perturbations", S. Fernando and Tyler Clark, General Relativity and Gravitation Vol. 46 (issue 12) 1834 (2014)
2) 鈥淣ull trajectories and bending of light in charged black holes with quintessence,鈥 S. Fernando, Scott Meadows and Kevon Reis, International Journal of Theoretical .Physics 54, 3634 (2015)
3) 鈥淨uasi normal modes of Bardeen black holes: scalar perturbations,鈥 S. Fernando and Juan Correa, Physical Review D 86 064039( 2012)