@misc {IOPORT.70861009,
    author       = {Warth, Alessandro and Ohshima, Yoshiki and Kaehler, Ted and Kay, Alan C.},
    title        = {Worlds: controlling the scope of side effects},
    howpublished = {ECOOP, 179-203 (2011).},
    year         = {2011},
    doi          = {10.1007/978-3-642-22655-7_9},
    identifier   = {70861009},
}