Marica Manisera, Paola Zuccolotto. Modeling "don't know" responses in rating scales. Pattern Recognition Letters, 45:226-234, 2014. [doi]
@article{ManiseraZ14,
title = {Modeling "don't know" responses in rating scales},
author = {Marica Manisera and Paola Zuccolotto},
year = {2014},
doi = {10.1016/j.patrec.2014.04.012},
url = {http://dx.doi.org/10.1016/j.patrec.2014.04.012},
researchr = {https://researchr.org/publication/ManiseraZ14},
cites = {0},
citedby = {0},
journal = {Pattern Recognition Letters},
volume = {45},
pages = {226-234},
}