@article{WangSontag:1989,
    title = {On two definitions of observation spaces},
    volume = {13},
    issn = {0167-6911},
    url = {http://dx.doi.org/10.1016/0167-6911(89)90116-3},
    doi = {10.1016/0167-6911(89)90116-3},
    number = {4},
    journal = {Systems {\&} Control Letters},
    publisher = {Elsevier BV},
    author = {Wang, Yuan and Sontag, Eduardo D.},
    year = {1989},
    month = {nov},
    pages = {279--289},
    date-added = {2025-2-10 13:54:55 +0100}
}

@article{WangSontag:1989, title = {On two definitions of observation spaces}, volume = {13}, issn = {0167-6911}, url = {http://dx.doi.org/10.1016/0167-6911(89)90116-3}, doi = {10.1016/0167-6911(89)90116-3}, number = {4}, journal = {Systems {\&} Control Letters}, publisher = {Elsevier BV}, author = {Wang, Yuan and Sontag, Eduardo D.}, year = {1989}, month = {nov}, pages = {279--289}, date-added = {2025-2-10 13:54:55 +0100} }