• Journal of the speleological society of Korea
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• no.4
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• pp.79-96
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• 1996

Since lava tube caves began to be mapped in large numbers, numerous claims to possession of the world's longest have been advanced by caverns from various countries. Among the caves for which this distinction has been claimed are Ape Cave, washington (halliday, 1962); the Cueva de los Verdes, Canary Islands (Montoriol and de Mier, 1969); the Cueva del Viento, Canary Islands (Montoriol and de Mier, 1974); Kazumura Cave, Hawaii (Gagne and Howarth, 1975); Leviathan Cave, Kenya (Simon, 1976); Man Jang Gul, South Korea (Anon., 1981); and Bilemot Gul, South Korea (Ogawa, 1982).(omitted)

• Journal of Environmental Science International
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• v.17 no.10
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• pp.1081-1092
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• 2008

This study was conducted to provide scientific information for establishing efficient and systematic measures for nature conservation and management in Manjang-gul lava tube. The number of vascular plants was 204 taxa (82 families, 176 genera, 144 species, 1 subspecies, 26 varieties and 1 forma). Of those, pteridophyte were 5 families, 12 genera, 14 species and 1 variety and gymnosperm were 4 families, 6 genera, 5 species and 1 variety. Seventy three families, 149 genera, 157 species, 1 subspecies, 24 varieties and 1 forma in angiosperm composed of 62 families, 123 genera, 137 species, 1 subspecies, 17 varieties and 1 forma in dicotyledon and 11 families, 26 genera, 20 species and 7 varieties in monocotyledon. The number of naturalized plants was 9 families, 17 genera, 18 species and 3 varieties, totaling 21 taxa.

• The Journal of the Convergence on Culture Technology
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• v.4 no.4
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• pp.161-166
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• 2018

Sojeon, Son Jaehyung(1903~1981) was interested in the composition of the classical writing style of Han-gul and its merits in the operation of the brush. And a genius, modern sense of sculpture and ingenious ideas applied to the calligraphy. Thus, he succeeded Tonggukjinche by sublimating it into a unique Handwriting pure and humorous. Sojeon Hangul Calligraphy is exaggerated in consideration of the change of direction, thickness and length of the stroke. There is nothing strange about law and organization and express the great beauty of the great art of harmony and change. Sojeon's contribution is significant in that it has not only become a model for the development of Han-gul calligraphy, but also created a new area of space in modern calligraphy.

• Magazine of the Korea Concrete Institute
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• v.20 no.5
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• pp.61-68
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• 2008

• KCID journal
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• v.1 no.1
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• pp.74-76
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• 1994

• Magazine of the Korea Concrete Institute
• /
• v.24 no.1
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• pp.33-35
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• 2012

• 대한임상약리학회:학술대회논문집
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• 2006.11a
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• pp.69-69
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• 2006

• 한국초전도학회:학술대회논문집
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• 2008.08a
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• pp.8-8
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• 2008

• Journal of the Korean hospital association
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• v.34 no.4 s.296
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• pp.11-15
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• 2005

• Journal of the Korean Society for Railway
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• v.9 no.3 s.32
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• pp.26-33
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• 2006