@misc{firefly+algorithm+for+continuous+constrained+optimization,
    author = {Łukasik, Szymon i Żak, Sławomir},
    title = {Firefly algorithm for continuous constrained optimization},
    journal = {Computational Collective Intelligence. Semantic Web, Social Networks and Multiagent Systems. (Lecture Notes in Computer Science, vol. 5796)},
    address = {Berlin ; Heidelberg},
    publisher = {Springer},
    date = {2009}
}