Tubbs RS, Rasmussen M, Loukas M, Shoja MM, Cohen-Gadol AA (2011). «Three nearly forgotten anatomical triangles of the neck: triangles of Beclard, Lesser and Pirogoff and their potential applications in surgical dissection of the neck». Surg Radiol Anat1 (33): 53-57. PMID20623121. doi:10.1007/s00276-010-0697-2.
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Tubbs RS, Rasmussen M, Loukas M, Shoja MM, Cohen-Gadol AA (2011). «Three nearly forgotten anatomical triangles of the neck: triangles of Beclard, Lesser and Pirogoff and their potential applications in surgical dissection of the neck». Surg Radiol Anat1 (33): 53-57. PMID20623121. doi:10.1007/s00276-010-0697-2.