@article{ITA_1996__30_2_123_0,
     author = {Book, Ronald V. and Mayordomo, Elvira},
     title = {On the robustness of {ALMOST-}$\mathcal {R}$
},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {123--133},
     year = {1996},
     publisher = {EDP Sciences},
     volume = {30},
     number = {2},
     mrnumber = {1420687},
     zbl = {0860.68049},
     language = {en},
     url = {https://www.numdam.org/item/ITA_1996__30_2_123_0/}
}