@article{ITA_1997__31_5_457_0,
     author = {Almeida, J. and Zeitoun, M.},
     title = {The pseudovariety $J$ is hyperdecidable},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {457--482},
     publisher = {EDP-Sciences},
     volume = {31},
     number = {5},
     year = {1997},
     mrnumber = {1611659},
     zbl = {0928.20046},
     language = {en},
     url = {http://archive.numdam.org/item/ITA_1997__31_5_457_0/}
}