Yasutaka Kamei Shinsuke Matsumoto Hirotaka Maeshima Yoji Onishi Masao Ohira Ken-ichi Matsumoto Analysis of Coordination Between Developers and Users in the Apache Community. 81-92 2008 OSS http://dx.doi.org/10.1007/978-0-387-09684-1_7 conf/oss/2008 db/conf/oss/oss2008.html#KameiMMOOM08