Revisiting the holographic dark energy in a non-flat universe: alternative model and cosmological parameter constraintsJing-Fei Zhang, Ming-Ming Zhao, Jing-Lei Cui and Xin ZhangEur. Phys. J. C, 74 11 (2014) 3178DOI: https://doi.org/10.1140/epjc/s10052-014-3178-7