The DKP oscillator with a linear interaction in the cosmic string space-time Mansoureh Hosseinpour, Hassan Hassanabadi and Fabiano M. Andrade Eur. Phys. J. C, 78 2 (2018) 93 Published online: 31 January 2018 DOI: 10.1140/epjc/s10052-018-5574-x