Duda, V; Suzina, N; Polivtseva, V; Boronin, A (2012). "Ultramicrobacteria: Formation of the Concept and Contribution of Ultramicrobacteria to Biology". Microbiology. 81 (4): 379–390. doi:10.1134/s0026261712040054. PMID23156684. S2CID6391715.
Duda, V; Suzina, N; Polivtseva, V; Boronin, A (2012). "Ultramicrobacteria: Formation of the Concept and Contribution of Ultramicrobacteria to Biology". Microbiology. 81 (4): 379–390. doi:10.1134/s0026261712040054. PMID23156684. S2CID6391715.
Duda, V; Suzina, N; Polivtseva, V; Boronin, A (2012). "Ultramicrobacteria: Formation of the Concept and Contribution of Ultramicrobacteria to Biology". Microbiology. 81 (4): 379–390. doi:10.1134/s0026261712040054. PMID23156684. S2CID6391715.