1. Ishihara M, Watanabe T, Shimizu K, et al (1980) Prospect of sail-equipped motor ship as assessed from experimental ship Daioh. Proceedings of the Shipboard Energy Conservation Symposium, Society of Naval Architects and Marine Engineers, pp 181–198
2. Matsumoto N, Inoue M, Sudo M (1982) Operating performance of a sail-equipped tanker in wave and wind. Proceedings of the 2nd International Conference of Stability of Ships and Ocean Vehicles, STAB ‘82, Tokyo, pp 451–464
3. Hamada N (1986) Experimental study of performance on modern sail-equipped merchant ship (in Japanese). Doctoral thesis No. 7130, Osaka University, Japan
4. Rosander M, Bloch JOV (2000) Modern windships phase 2. Danish Environmental Protection Agency, http://www.mst.dk/udgiv/publications/2000/87-7944-019-3/html/default_eng.htm