For citations:
Kravtsov N.A. Ergonomics in the systems of three-row chromatic accordion keyboards. Bulletin of Vaganova Ballet Academy. 2021;72(2):160-172. (In Russ.)
Kravtsov N.A. Ergonomics in the systems of three-row chromatic accordion keyboards. Bulletin of Vaganova Ballet Academy. 2021;72(2):160-172. (In Russ.)