Interacting holographic extended Chaplygin gas and phantom cosmology in the light of BICEP2 J. Sadeghi, H. Farahani and B. Pourhassan Eur. Phys. J. Plus, 130 4 (2015) 84 Published online: 30 April 2015 DOI: 10.1140/epjp/i2015-15084-6