Spatial databases-accomplishments and research needs
1999 ◽
Vol 11
(1)
◽
pp. 45-55
◽
2015 ◽
Vol 25
(1)
◽
pp. 15-23
◽
2013 ◽
Vol 3
(1)
◽
pp. 9-18
◽
Keyword(s):