@article{Chander_2007,
    doi = {10.1007/s00182-006-0067-9},
    url = {https://doi.org/10.1007%2Fs00182-006-0067-9},
    year = {2007},
    month = {jan},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {35},
    number = {4},
    pages = {539--556},
    author = {Parkash Chander},
    title = {The gamma-core and coalition formation},
    journal = {International Journal of Game Theory}
}

@article{Chander_2007, doi = {10.1007/s00182-006-0067-9}, url = {https://doi.org/10.1007%2Fs00182-006-0067-9}, year = {2007}, month = {jan}, publisher = {Springer Science and Business Media {LLC}}, volume = {35}, number = {4}, pages = {539--556}, author = {Parkash Chander}, title = {The gamma-core and coalition formation}, journal = {International Journal of Game Theory} }