Coltman, John W. (1971). „Effect of material on flute tone quality”. Journal of the Acoustical Society of America. 49 (2B): 520—523. Bibcode:1971ASAJ...49..520C. doi:10.1121/1.1912381.
Gunnar Schmidtmann; Susanne Jahnke; Egbert J. Seidel; Wolfgang Sickenberger; Hans-Jürgen Grein (2011). „Intraocular Pressure Fluctuations in Professional Brass and Woodwind Musicians During Common Playing Conditions”. Graefe's Archive for Clinical and Experimental Ophthalmology. 249 (6): 895—901. PMID21234587. S2CID21452109. doi:10.1007/s00417-010-1600-x. hdl:10026.1/10195.
Gunnar Schmidtmann; Susanne Jahnke; Egbert J. Seidel; Wolfgang Sickenberger; Hans-Jürgen Grein (2011). „Intraocular Pressure Fluctuations in Professional Brass and Woodwind Musicians During Common Playing Conditions”. Graefe's Archive for Clinical and Experimental Ophthalmology. 249 (6): 895—901. PMID21234587. S2CID21452109. doi:10.1007/s00417-010-1600-x. hdl:10026.1/10195.
Coltman, John W. (1971). „Effect of material on flute tone quality”. Journal of the Acoustical Society of America. 49 (2B): 520—523. Bibcode:1971ASAJ...49..520C. doi:10.1121/1.1912381.
Gunnar Schmidtmann; Susanne Jahnke; Egbert J. Seidel; Wolfgang Sickenberger; Hans-Jürgen Grein (2011). „Intraocular Pressure Fluctuations in Professional Brass and Woodwind Musicians During Common Playing Conditions”. Graefe's Archive for Clinical and Experimental Ophthalmology. 249 (6): 895—901. PMID21234587. S2CID21452109. doi:10.1007/s00417-010-1600-x. hdl:10026.1/10195.
Gunnar Schmidtmann; Susanne Jahnke; Egbert J. Seidel; Wolfgang Sickenberger; Hans-Jürgen Grein (2011). „Intraocular Pressure Fluctuations in Professional Brass and Woodwind Musicians During Common Playing Conditions”. Graefe's Archive for Clinical and Experimental Ophthalmology. 249 (6): 895—901. PMID21234587. S2CID21452109. doi:10.1007/s00417-010-1600-x. hdl:10026.1/10195.
Gunnar Schmidtmann; Susanne Jahnke; Egbert J. Seidel; Wolfgang Sickenberger; Hans-Jürgen Grein (2011). „Intraocular Pressure Fluctuations in Professional Brass and Woodwind Musicians During Common Playing Conditions”. Graefe's Archive for Clinical and Experimental Ophthalmology. 249 (6): 895—901. PMID21234587. S2CID21452109. doi:10.1007/s00417-010-1600-x. hdl:10026.1/10195.