1. Bafna V, Muthukrisnan S, Ravi R, (1995). Comput. Sci. 937: 1
2. Corpet F, Michot B, (1995). Comput. Appl. Biosci 10: 389
3. Le S.Y, Nussinov R, Mazel J.V, (1989). Comput. Biomed. Res 22: 461
4. Le S.Y, Onens J, Nussinov R, Chen J.H, Shapiro B, Mazel J.R, (1989). Comput. Biomed 5: 205
5. Shapiro B, (1998). Comput. Appl. Biosci 4(3): 387