@incollection{hhd09,
    author = {Hagedorn, Benjamin and Hildebrandt, Dieter and Döllner, Jürgen},
    booktitle = {Developments in 3D Geo-Information Sciences},
    title = {Towards Advanced and Interactive Web Perspective View Services},
    year = {2009},
    pages = {33--51},
    publisher = {Springer},
    series = {Lecture Notes in Geoinformation and Cartography},
    doi = {10.1007/978-3-642-04791-6_3},
}