WASET
    Anuj K. Sharma and  Amit Sharma and  Kulbhushan Agnihotri,  Dynamical Analysis of a Harvesting Model of Phytoplankton-Zooplankton Interaction.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 90(6). 1013 - 1018
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10000197.