A taxonomic study on section Atratae of Carex L. in Korea (Cyperaceae)
Korean Journal of Plant Taxonomy. 2001;31(3):223-251 
A taxonomic study on six section subgenus Vigena Nees of Carex L. (Cyperaceae) in Korea
Korean Journal of Plant Taxonomy. 2003;33(3):227-253
Taxonomic revision of the Iberian species of Carex L. section Phacocystis Dumort.(Cyperaceae)
Botanical Journal of the Linnean Society. 1994;114(2):183-214
A taxanomic study on section Acutae of Carex L. in Korea (Cyperaceae)
Korean Journal of Plant Taxonomy. 2001;31(3):183-222
Taxonomic revision of the Iberian species of Carex L. section Phacocystis Dumort. (Cyperaceae)
Botanical Journal of the Linnean Society. 1994;114(2):183-214
Toward an accurate taxonomic interpretation of Carex
fossil fruits (Cyperaceae): A case study in section Phacocystis
in the Western Palearctic
American Journal of Botany. 2013;100(8):1580-1603
Leaf epidermal patterns of section Siderostictae ( Carex , Cyperaceae ) in Korea
Korean Journal of Plant Taxonomy. 1987;17(2):55-61
A taxonomic study on sect. Rhomboidales Kuk. and sect. Digitatae Fr. of genus Carex L. subgen. Eucarex Cross & Germ. ( Cyperaceae ) in Korea
Korean Journal of Plant Taxonomy. 2002;32(3):301-338
A taxonomic study on six sections Ischnostachyae, Anomalae, Capitellatae, Debiles, Capillares and Molliculae of Carex L. in Korea (Cyperaceae)
Korean Journal of Plant Taxonomy. 2004;34(4):297-319
Leaf surfaces as a taxonomic tool: the case of Carex section Phacocystis (Cyperaceae) in the British Isles
Plant Systematics and Evolution. 2008;273(1-2):97-105