@InProceedings{burgkhardt2008dynamic,
	author = {Burgkhardt, Dennis and Cosovic, Ivan and Jondral, Friedrich K},
	title = {Dynamic spectrum allocation by hierarchical resource trading},
	booktitle = {Proc. IEEE Vehicular Technology Conf. (VTC-Spring)},
	pages = {1796–1800},
	year = {2008},
}