@article{PinneckeDBSK15,
    author = {Pinnecke, Marcus and Ho{\ss}bach, Bastian},
    title = {{Query Optimization in Heterogenous Event Processing Federations}},
    journal = {Datenbank-Spektrum},
    year = {2015},
    volume = {15},
    number = {3},
    pages = {193-202},
    keywords = {Federated Information Systems, Data Stream Processing, Query Optimization, Heuristics},
    url = {http://link.springer.com/article/10.1007/s13222-015-0195-0}
}