@ARTICLE{2015:CL_directlinkinbuffers,
author={Charalambous, T. and Nomikos, N. and Krikidis, I. and Vouyioukas, D. and Johansson, M.},
journal={IEEE Communications Letters},
title={Modeling Buffer-Aided Relay Selection in Networks With Direct Transmission Capability},
year={2015},
volume={19},
number={4},
pages={649--652},
ISSN={1089-7798},
month={April},
}