Yunwen Ye Yasuhiro Yamamoto Kumiyo Nakakoji Yoshiyuki Nishinaka Mitsuhiro Asada Searching the library and asking the peers: learning to use Java APIs on demand. 41-50 2007 conf/pppj/2007 PPPJ http://doi.acm.org/10.1145/1294325.1294332 db/conf/pppj/pppj2007.html#YeYNNA07