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Design of Solar Radiation Energy Data Management System
In Bae Oh   Yoon Ae Ahn   Keun Ho Ryu   Kwang Deuk Kim
Vol. 10, No. 3, pp. 531-540, Jun. 2003
10.3745/KIPSTD.2003.10.3.531
Design of Three Dimensional Spatial Topological Relational Operators
Sang Ho Kim   Goo Kang   Keun Ho Ryu
Vol. 10, No. 2, pp. 211-220, Apr. 2003
10.3745/KIPSTD.2003.10.2.211