Zhisu Zhu Chuangyin Dang Yinyu Ye A FPTAS for Computing a Symmetric Leontief Competitive Economy Equilibrium. 31-40 2008 WINE http://dx.doi.org/10.1007/978-3-540-92185-1_12 conf/wine/2008 db/conf/wine/wine2008.html#ZhuDY08