Kerfeld, Ca; Sawaya, Mr; Tanaka, S; Nguyen, Cv; Phillips, M; Beeby, M; Yeates, To (August 2005). "Protein structures forming the shell of primitive bacterial organelles.". Science309 (5736): 936–8. doi:10.1126/science.1113397. பப்மெட்:16081736.
Ryter A (1988). "Contribution of new cryomethods to a better knowledge of bacterial anatomy". Ann. Inst. Pasteur Microbiol.139 (1): 33–44. doi:10.1016/0769-2609(88)90095-6. பப்மெட்:3289587.
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ncbi.nlm.nih.gov
Kerfeld, Ca; Sawaya, Mr; Tanaka, S; Nguyen, Cv; Phillips, M; Beeby, M; Yeates, To (August 2005). "Protein structures forming the shell of primitive bacterial organelles.". Science309 (5736): 936–8. doi:10.1126/science.1113397. பப்மெட்:16081736.
Ryter A (1988). "Contribution of new cryomethods to a better knowledge of bacterial anatomy". Ann. Inst. Pasteur Microbiol.139 (1): 33–44. doi:10.1016/0769-2609(88)90095-6. பப்மெட்:3289587.