Sayem Zafar and  Mahmood Rahi,  Energy Harvesting and Storage System for Marine Applications.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2019, vol. 147(3). 182 - 186
    [viewed 15 November 2019]. Available from: https://publications.waset.org/pdf/10010193.