Junji Hamada Akira Uchiyama Hirozumi Yamaguchi Shinji Kusumoto Teruo Higashino Self-estimation of Neighborhood Density for Mobile Wireless Nodes. 178-192 2009 UIC http://dx.doi.org/10.1007/978-3-642-02830-4_15 conf/uic/2009 db/conf/uic/uic2009.html#HamadaUYKH09