Rajiv Chakravorty Sulabh Agarwal Suman Banerjee Ian Pratt A mobile bazaar for wide-area wireless services. 757-777 2007 13 Wireless Networks 6 http://dx.doi.org/10.1007/s11276-006-9853-3 db/journals/winet/winet13.html#ChakravortyABP07