Becher L, Gena AW, Völker C, Richter B, Spahn C. Risk assessment of the spread of breathing air from wind instruments and singers during the COVID-19 pandemic. (2020-07-23) https://www.researchgate.net/publication/343021382_1st_update_Risk_assessment_of_the_spread_of_breathing_air_from_wind_instruments_and_singers_during_the_COVID-19_pandemic_1_Update_Risikoeinschatzung_zur_Ausbreitung_der_Atemluft_beim_Spielen_von_Blasi

1. Update des Papers vom 23.07.2020
1. Version vom 26.06.2020: https://dx.doi.org/10.13140/RG.2.2.25455.87208