@inproceedings{Janin,
    doi = {10.1109/lics.1997.614945},
    url = {https://doi.org/10.1109%2Flics.1997.614945},
    publisher = {{IEEE} Comput. Soc},
    author = {D. Janin},
    title = {Automata, tableaus and a reduction theorem for fixpoint calculi in arbitrary complete lattices},
    booktitle = {Proceedings of Twelfth Annual {IEEE} Symposium on Logic in Computer Science}
}

@inproceedings{Janin, doi = {10.1109/lics.1997.614945}, url = {https://doi.org/10.1109%2Flics.1997.614945}, publisher = {{IEEE} Comput. Soc}, author = {D. Janin}, title = {Automata, tableaus and a reduction theorem for fixpoint calculi in arbitrary complete lattices}, booktitle = {Proceedings of Twelfth Annual {IEEE} Symposium on Logic in Computer Science} }