TY - GEN A4 - van der Veen, Ike A4 - Fiedler, Heidelore A4 - de Boer, Jacob PY - 2018 UR - https://wedocs.unep.org/handle/20.500.11822/26111 LA - English KW - persistent organic pollutant TI - Bi-ennial Global Interlaboratory Assessment on Persistent Organic Pollutants – Fourth Round 2018 M3 - Meeting resource ER -