• Exposure to high or low frequency noise at workplaces : differences between assessment, health complaints and implementation of adequate personal protective equipmentReinhold, Karin; Kalle, Sigrid; Paju, JanaAgronomy research2014 / p. 895-906 : ill https://agronomy.emu.ee/tag/frequency-analysis/ https://www.scopus.com/sourceid/21100201050 https://www.scopus.com/record/display.uri?eid=2-s2.0-84901464973&origin=inward&txGid=463bdd35bc4344acaf7f9e44cc22cbed