Xuzhen Xie Mutsunori Yagiura Takao Ono Tomio Hirata Uri Zwick New Bounds for the Nearly Equitable Edge Coloring Problem. 280-291 2007 conf/isaac/2007 ISAAC http://dx.doi.org/10.1007/978-3-540-77120-3_26 db/conf/isaac/isaac2007.html#XieYOHZ07