Toward Heterogeneous Cardinal Direction Calculus

@inproceedings{pub4459,
    author = {

Kurata, Yohei
 and 

Shi, Hui
},
    editor = {

Mertsching, Bärbel
 and 

Hund, Marcus
 and 

Aziz, Muhammad Zaheer
},
    title = {Toward Heterogeneous Cardinal Direction Calculus},
    booktitle = {Proceedings of the 32nd Annual German Conference on Artifical Intelligence. German Conference on Artificial Intelligence (KI-2009), September 15-18, Paderborn, Germany},
    series = {Lecture Notes in Computer Science (LNCS)},
    year = {2009},
    volume = {5803},
    pages = {452--459},
    publisher = {Springer},
    isbn = {978-3-642-04616-2}
}