Pete Räsänen Simo Lintunen Riku Kuismanen Jyrki Joutsensalo Timo Hämäläinen Gradient scheduling algorithm for fair delay guarantee in logarithmic pricing scenario. 5 2008 SimuTools http://doi.acm.org/10.1145/1416222.1416229 conf/simutools/2008 db/conf/simutools/simutools2008.html#RasanenLKJH08