@incollection{Boloni-2004-MutabilityChapter,
    author = {L. Bölöni and M.A. Khan and X. Bai and G. Wang and Y. Ji and D.C. Marinescu},
    booktitle = {Software Engineering for Multi-Agent Systems II, Lecture Notes
in Computer Science Vol 2940},
    pages = {149-167},
    title = {Software engineering challenges for mutable agent systems},
    year = {2004}
}