@article{ref1, title="Human and Mechanical Error-an Unknown Quantity in Research", journal="American behavioral scientist", year="1967", author="Sussman, M. B. and Haug, M. R.", volume="11", number="2", pages="55-56", abstract="

[Abstract unavailable]

", language="", issn="0002-7642", doi="10.1177/000276426701100204", url="http://dx.doi.org/10.1177/000276426701100204" }