@article{ref1,
title="Studies in Occupational Analysis: I. Levels of Difficulty, Responsibility, and Importance in Technical Judgment and Design Operations in Ordnance and Mechanical Engineering",
journal="Journal of psychology, The",
year="1946",
author="Israeli, Nathan",
volume="21",
number="1",
pages="197-200",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0022-3980",
doi="10.1080/00223980.1946.9917281",
url="http://dx.doi.org/10.1080/00223980.1946.9917281"
}