J. Daesoon Acad. Sci. 2001; 13:39-57
pISSN: 1598-3439
ⓒ Copyright 2001, The Daesoon Academy of Sciences. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Published Online: Dec 28, 2001