Eduard Jan Rinia, C. De Lange, Henk F. Moed. Measuring national output in physics: Delimitation problems. Scientometrics, 28(1):89-110, 1993. [doi]
@article{RiniaLM93,
title = {Measuring national output in physics: Delimitation problems},
author = {Eduard Jan Rinia and C. De Lange and Henk F. Moed},
year = {1993},
doi = {10.1007/BF02016287},
url = {http://dx.doi.org/10.1007/BF02016287},
researchr = {https://researchr.org/publication/RiniaLM93},
cites = {0},
citedby = {0},
journal = {Scientometrics},
volume = {28},
number = {1},
pages = {89-110},
}