Makanya, AN; Hlushchuk, R; Djonov, V (31 August 2011). "The pulmonary blood-gas barrier in the avian embryo: inauguration, development and refinement". Respiratory Physiology & Neurobiology. 178 (1): 30–8. doi:10.1016/j.resp.2011.03.028. PMID21477666. S2CID207506433.
Makanya, AN; Hlushchuk, R; Djonov, V (31 August 2011). "The pulmonary blood-gas barrier in the avian embryo: inauguration, development and refinement". Respiratory Physiology & Neurobiology. 178 (1): 30–8. doi:10.1016/j.resp.2011.03.028. PMID21477666. S2CID207506433.
Makanya, AN; Hlushchuk, R; Djonov, V (31 August 2011). "The pulmonary blood-gas barrier in the avian embryo: inauguration, development and refinement". Respiratory Physiology & Neurobiology. 178 (1): 30–8. doi:10.1016/j.resp.2011.03.028. PMID21477666. S2CID207506433.