https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763009641619&signature=70f40650f5f87f6e62e7b1a37e1347c1&articleTitle=Charting+the+Topic+Maps+Research+and+Applications+Landscape&articleAuthor=Lutz+Maicher%2C+Jack+Park&publicationTitle=Charting+the+Topic+Maps+Research+and+Applications+Landscape&language=&publicationType=1&publishYear=2006&isn=9783540325277&publisher=Springer+Berlin+Heidelberg