Kumar, P; Chand, H; Srianand, R; Stalin, C. S; Petitjean, P; Gopal-Krishna(Oxford University Press on behalf of the Royal Astronomical Society, 2018-10)
Kumar, P; Gopal-Krishna; Stalin, C. S; Chand, H; Srianand, R; Petitjean, P(Oxford University Press on behalf of the Royal Astronomical Society, 2017-10)