Paper  bibtex   

@article{maehara2015,
 author = {Takanori Maehara},
 title = {Risk averse submodular utility maximization},
 journal = {Operations Research Letters},
 volume = {43},
 number = {5},
 pages = {526--529},
 year = {2015},
 month = {May},
 url = {https://doi.org/10.1016/j.orl.2015.08.001},
}