Khowaja-Ateequzzaman, Garg, R. and Jain, K. 1990. Some observations on dinoflagellate cyst genus alterbidinium Lantin & Williams 1985. Journal of Palaeosciences. 39, (1-3) (Dec. 1990), 37–45. DOI:https://doi.org/10.54991/jop.1990.1680.