• OHSAS 18001 contribution to real and formal safety elements in safety management system in manufacturingPaas, Õnnela; Reinhold, Karin; Tint, PiiaAgronomy research2015 / p. 1260-1274 : ill http://agronomy.emu.ee/vol135/vol13_5_9.pdf https://www.scopus.com/sourceid/21100201050 https://www.scopus.com/record/display.uri?eid=2-s2.0-84949939582&origin=inward&txGid=8d4a9b22f44b1eda76a42af997397817