Please cite
@ARTICLE{LuoTayLen:J13,
author = {Wuqiong Luo and Wee Peng Tay and Mei Leng},
title = {Identifying infection sources and regions in large networks},
journal = {{IEEE} Trans. Signal Process.},
volume = {61},
number = {11},
pages = {2850 -- 2865},
month = {Jun.},
year = {2013},
}
@ARTICLE{LuoTayLen:J14,
author = {Wuqiong Luo and Wee Peng Tay and Mei Leng},
title = {How to Identify an Infection Source with Limited Observations},
journal = {{IEEE} J. Sel. Topics Signal Process.},
volume = {8},
number = {4},
pages = {586 -- 597},
month = {Aug.},
year = {2014},
}