Ana Cristina Mendes, Luísa Coheur. When the answer comes into question in question-answering: survey and open issues. Natural Language Engineering, 19(1):1-32, 2013. [doi]
@article{MendesC13,
title = {When the answer comes into question in question-answering: survey and open issues},
author = {Ana Cristina Mendes and Luísa Coheur},
year = {2013},
doi = {10.1017/S1351324911000350},
url = {http://dx.doi.org/10.1017/S1351324911000350},
researchr = {https://researchr.org/publication/MendesC13},
cites = {0},
citedby = {0},
journal = {Natural Language Engineering},
volume = {19},
number = {1},
pages = {1-32},
}