@article{JRC18092, address = {}, year = {2000}, author = {Pauwels J and Van Der Veen A and Lamberty A and Schimmel H}, abstract = {Abstract not available }, title = {Evaluation of Uncertainty of Reference Materials.}, type = {}, url = {}, volume = {}, number = {}, journal = {Accred Qual Assur}, pages = {}, issn = {}, publisher = {}, doi = {} }