@article{van Leeuwen2004,
author = {van Leeuwen, M.H.D. and Maas, I. and Miles, A.},
title= {Creating a Historical International Standard Classification of Occupations: An Exercise in Multinational Interdisciplinary Cooperation. Historical Methods},
year = {2004},
doi = {10.3200/HMTS.37.4.186-197},
journal = {A Journal of Quantitative and Interdisciplinary History},
volume = {37},
number = {4},
pages = {186--197},
}