- Research Papers A Study of Characteristics of Vertical-up SMA Welding by Short Circuit Control
- Kyung-Hun Lee, Hoi-Soo Ryoo, Soong-Keun Hyun
- J Weld Join. 2017;35(5):23-28.
- Research Papers Short Circuit Waveform Control Type SMAW Welding Power Source Development and Characteristic Evaluation
- Hyun-Min Yang, Hoi-Soo Ryoo, Soong-Keun Hyun
- J Weld Join. 2016;34(3):40-46.