Volker Krätschmer. Least-squares estimation in linear regression models with vague concepts. Fuzzy Sets and Systems, 157(19):2579-2592, 2006. [doi]
@article{Kratschmer06,
title = {Least-squares estimation in linear regression models with vague concepts},
author = {Volker Krätschmer},
year = {2006},
doi = {10.1016/j.fss.2003.02.001},
url = {http://dx.doi.org/10.1016/j.fss.2003.02.001},
researchr = {https://researchr.org/publication/Kratschmer06},
cites = {0},
citedby = {0},
journal = {Fuzzy Sets and Systems},
volume = {157},
number = {19},
pages = {2579-2592},
}