Geng Lin Zhengshan Dong Jinyan Luo Xiang Chen Meiqin Xu Applying a hybrid binary harmony search algorithm for the obnoxious p-median problem. 1-4 2021 CISP-BMEI https://doi.org/10.1109/CISP-BMEI53629.2021.9624340 conf/bmei/2021 db/conf/bmei/bmei2021.html#LinDLCX21