Y. Oshman, I. Y. Bar-Itzhack. Square root filtering via covariance and information eigenfactors. Automatica, 22(5):599-604, 1986. [doi]
@article{OshmanB86,
title = {Square root filtering via covariance and information eigenfactors},
author = {Y. Oshman and I. Y. Bar-Itzhack},
year = {1986},
doi = {10.1016/0005-1098(86)90070-1},
url = {http://dx.doi.org/10.1016/0005-1098(86)90070-1},
researchr = {https://researchr.org/publication/OshmanB86},
cites = {0},
citedby = {0},
journal = {Automatica},
volume = {22},
number = {5},
pages = {599-604},
}