Drozdov, Ignat; Kidd, Mark; Modlin, Irvin M. (2008). "Clinical Perspective: Evolution of One-Handed Piano Compositions". Journal of Hand Surgery. 33A (5). American Society for Surgery of the Hand: 780–786. doi:10.1016/j.jhsa.2008.01.002. PMID18590863.
Drozdov, Ignat; Kidd, Mark; Modlin, Irvin M. (2008). "Clinical Perspective: Evolution of One-Handed Piano Compositions". Journal of Hand Surgery. 33A (5). American Society for Surgery of the Hand: 780–786. doi:10.1016/j.jhsa.2008.01.002. PMID18590863.