Evaluation of Elastic Properties and Conductivity of Chitosan Acetate Films in Ammonia and Water Vapors Using Acoustic Resonators. - Boris D. Zaitsev; Andrey A. Teplykh; Fedor S. Fedorov; Artem K. Grebenko; Albert G. Nasibulin; Alexander P. Semyonov; Irina A. Borodina (Sensors, 2020)