Friedrich Gebhardt. A simple probabilistic model for the relevance assessment of documents. Inf. Process. Manage., 11(1-2):59-65, 1975. [doi]
@article{Gebhardt75:0,
title = {A simple probabilistic model for the relevance assessment of documents},
author = {Friedrich Gebhardt},
year = {1975},
doi = {10.1016/0306-4573(75)90034-5},
url = {http://dx.doi.org/10.1016/0306-4573(75)90034-5},
researchr = {https://researchr.org/publication/Gebhardt75%3A0},
cites = {0},
citedby = {0},
journal = {Inf. Process. Manage.},
volume = {11},
number = {1-2},
pages = {59-65},
}