@article {IOPORT.50353905,
    author       = {Van Oosterom, Peter and Schenkelaars, Vincent},
    title        = {The development of an interactive multi-scale GIS},
    year         = {1995},
    journal      = {International Journal of Geographical Information Systems},
    volume       = {9},
    number       = {5},
    pages        = {489-507},
    doi          = {10.1080/02693799508902052},
    identifier   = {50353905},
}