1. Ahn, B.-Z., Baik, K.-U., Kweon, G.-R., Lim, K. and Hwang, B.-D., Acylshikonin Analogues: Synthesis and Inhibition of DNA Topoisomerase-I.J. Med. Chem., 38, 1044–1047 (1995).
2. Cho, M.-H., Paik, Y.-S. and Hahn, T.-R. Physical Stability of Shikonin Derivatives from the Roots ofLithospermum erythrorhizon Cultivated in Korea.J. Agri. Food Chem. in press (1999).
3. Chung, M.-S. and Lee, M.-S., Stability and Sensory Evaluation of Naphthoquinone Pigments from the Roots ofLithospermum erythrorhizon.Korean J. Food Sci. Technol., 26, 152–156 (1994).
4. Kim, H. and Ahn, B.-Z., Antitumor Effects of Acetylshikonin and Some Synthesized Naphtharazin on L1210 and S-180 System.Yakhak Hoeji, 34, 262–266 (1990).
5. Kyogoku, K., Terayama, H., Tachi, Y., Suzuki, T. and Komatsu, M., Constituents of shikon. II. Comparison of contents, constituents, and antibacterial effect of fat soluble fraction between nanshikon and koshikon.Shoyakugaku Zasshi., 27, 31–36 (1973).