WASET
    Lina Wu and  Jia Liu and  Ye Li,  Discovering Liouville-Type Problems for p-Energy Minimizing Maps in Closed Half-Ellipsoids by Calculus Variation Method.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 118(10). 527 - 533
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10006222.