Venkatesan T. Chakaravarthy Vinayaka Pandit Sambuddha Roy Yogish Sabharwal Approximating Decision Trees with Multiway Branches. 210-221 2009 ICALP (1) http://dx.doi.org/10.1007/978-3-642-02927-1_19 conf/icalp/2009-1 db/conf/icalp/icalp2009-1.html#ChakaravarthyPRS09