by 주항연, 구대환, 구세현, Sang Hong Van Nguyen
Published in Journal of the Korean Mathematical Society (01.03.2025)

by 구대환, 오명성, 신준국
Published in Journal of the Korean Mathematical Society (01.01.2017)

by 구대환, 박은미, 신준국
Published in 충청수학회지, 33(1) (01.02.2020)

by 신준국, 구대환, 한미나
Published in 충청수학회지, 32(3) (01.08.2019)

by 구대환, 이태웅, 신준국
Published in 충청수학회지, 31(4) (01.11.2018)

by 박윤석, Pak Yunseok, 구대환, Koo Daehwan
Published in 지식재산연구 (30.06.2021)

by 구대환, Koo Daehwan
Published in 지식재산연구 (30.12.2016)

by 구대환, Daehwan Koo
Published in 지식재산연구 (30.12.2015)

by 구대환(Koo, Dae-Hwan)
Published in Tonga pŏphak (01.08.2013)

by 구대환, Koo Daehwan
Published in 지식재산연구 (30.09.2014)

by 구대환, 신재홍
Published in 韓國學校數學會論文集 (31.03.2020)

by 구대환, Gu¸ Dae-hwan
Published in 지식재산연구 (30.06.2006)