@ARTICLE {22637,
author={. . and C.C.M. Monteiro and P. R. M. I. Inácio  and M. Freire},
doi={10.1016/j.jpdc.2017.08.010},
journal={Journal of Parallel and Distributed Computing},
title={Approaches for Optimizing Virtual Machine Placement and Migration in Cloud Environments: A survey},
year={2017},
month={September},
volume={111},
number={.},
pages={222-250},
ISSN={0743-7315}
}