@Article{blaschke2008opportunistic,
	author = {Blaschke, Volker and Kloeck, Clemens and Weiss, Jan and Renk, Tobias and Jondral, Friedrich K},
	title = {Opportunistic WiMAX-GSM coexistence},
	journal = {IET Communications},
	volume = {2},
	number = {6},
	pages = {837–845},
	year = {2008},
}