@article{alshalan2016survey,
	title = {A survey of mobile {VPN} technologies},
	volume = {18},
	issn = {1553-877X},
	doi = {10.1109/COMST.2015.2496624},
	number = {2},
	journal = {IEEE Communications Surveys Tutorials},
	author = {Alshalan, A. and Pisharody, S. and Huang, D.},
	year = {2016},
	pages = {1177--1196}
}