Paper  bibtex   

@article{maehara2015valuated,
 author = {Takanori Maehara and Kazuo Murota},
 title = {Valuated matroid-based algorithm for submodular welfare problem},
 journal = {Annals of Operations Research},
 volume = {229},
 number = {1},
 pages = {565--590},
 year = {2015},
 month = {June},
 url = {https://doi.org/10.1007/s10479-015-1835-3},
}