Nedkov P, Oberthür W, Braunitzer G (April 1985). "Determination of the complete amino-acid sequence of subtilisin DY and its comparison with the primary structures of the subtilisins BPN', Carlsberg and amylosacchariticus". Biological Chemistry Hoppe-Seyler. 366 (4): 421–30. doi:10.1515/bchm3.1985.366.1.421. PMID3927935.
Eschenburg, S; Genov, N; Peters, K; Fittkau, S; Stoeva, S; Wilson, KS; Betzel, C (15 October 1998). "Crystal structure of subtilisin DY, a random mutant of subtilisin Carlsberg". European Journal of Biochemistry. 257 (2): 309–18. doi:10.1046/j.1432-1327.1998.2570309.x. PMID9826175.
Betzel, C; Klupsch, S; Branner, S; Wilson, KS (1996). Crystal structures of the alkaline proteases savinase and esperase from Bacillus lentus. Advances in Experimental Medicine and Biology. Vol. 379. pp. 49–61. doi:10.1007/978-1-4613-0319-0_7. ISBN978-0-306-45108-9. PMID8796310.
Betzel, C; Klupsch, S; Papendorf, G; Hastrup, S; Branner, S; Wilson, KS (20 January 1992). "Crystal structure of the alkaline proteinase Savinase from Bacillus lentus at 1.4 A resolution". Journal of Molecular Biology. 223 (2): 427–45. doi:10.1016/0022-2836(92)90662-4. PMID1738156.
Nedkov P, Oberthür W, Braunitzer G (April 1985). "Determination of the complete amino-acid sequence of subtilisin DY and its comparison with the primary structures of the subtilisins BPN', Carlsberg and amylosacchariticus". Biological Chemistry Hoppe-Seyler. 366 (4): 421–30. doi:10.1515/bchm3.1985.366.1.421. PMID3927935.
Eschenburg, S; Genov, N; Peters, K; Fittkau, S; Stoeva, S; Wilson, KS; Betzel, C (15 October 1998). "Crystal structure of subtilisin DY, a random mutant of subtilisin Carlsberg". European Journal of Biochemistry. 257 (2): 309–18. doi:10.1046/j.1432-1327.1998.2570309.x. PMID9826175.
Betzel, C; Klupsch, S; Branner, S; Wilson, KS (1996). Crystal structures of the alkaline proteases savinase and esperase from Bacillus lentus. Advances in Experimental Medicine and Biology. Vol. 379. pp. 49–61. doi:10.1007/978-1-4613-0319-0_7. ISBN978-0-306-45108-9. PMID8796310.
Betzel, C; Klupsch, S; Papendorf, G; Hastrup, S; Branner, S; Wilson, KS (20 January 1992). "Crystal structure of the alkaline proteinase Savinase from Bacillus lentus at 1.4 A resolution". Journal of Molecular Biology. 223 (2): 427–45. doi:10.1016/0022-2836(92)90662-4. PMID1738156.