Ab initio calculations of B2 type RHg (R = Ce, Pr, Eu and Gd) intermetallic compounds Hansa Devi, Gitanjali Pagare, Ekta Jain and Sankar P. Sanyal Eur. Phys. J. B, 87 11 (2014) 268 Published online: 10 November 2014 DOI: 10.1140/epjb/e2014-50521-6