@article{naor1998load,
    title={The load, capacity, and availability of quorum systems},
    author={Naor, Moni and Wool, Avishai},
    journal={SIAM Journal on Computing},
    volume={27},
    number={2},
    pages={423--447},
    year={1998},
    publisher={SIAM}
}

@article{vukolic2013origin,
    title={The origin of quorum systems},
    author={Vukoli{\'c}, Marko and others},
    journal={Bulletin of EATCS},
    volume={2},
    number={101},
    year={2013}
}