@incollection{Riche_1999,
    doi = {10.1007/10703163_16},
    url = {https://doi.org/10.1007%2F10703163_16},
    year = {1999},
    publisher = {Springer Berlin Heidelberg},
    pages = {224--240},
    author = {Jacques Riche and Robert K. Meyer},
    title = {Kripke, Belnap, Urquhart and Relevant Decidability {\&} Complexity},
    booktitle = {Computer Science Logic}
}

@incollection{Riche_1999, doi = {10.1007/10703163_16}, url = {https://doi.org/10.1007%2F10703163_16}, year = {1999}, publisher = {Springer Berlin Heidelberg}, pages = {224--240}, author = {Jacques Riche and Robert K. Meyer}, title = {Kripke, Belnap, Urquhart and Relevant Decidability {\&} Complexity}, booktitle = {Computer Science Logic} }