LONGLEY, Paul. Geographic information systems & science. 3rd ed. Hoboken : Wiley, c2011. xix, 539 s. Dostupné na internetu: <http://bvbr.bib-bvb.de:8991/exlibris/aleph/a21_1/apache_media/M63933H88746FV4653KA4UY18Y5CUC.pdf> ISBN 978-0-470-72144-5.