Duffin-Kemmer-Petiau equation in curved space-time with scalar linear interaction H. Hassanabadi, M. Hosseinpour and M. de Montigny Eur. Phys. J. Plus, 132 12 (2017) 541 Published online: 27 December 2017 DOI: 10.1140/epjp/i2017-11831-y