@article{10_21136_MB_2007_133967,
     author = {Chajda, I. and Kola\v{r}{\'\i}k, M.},
     title = {Directoids with sectionally antitone involutions and skew {MV-algebras}},
     journal = {Mathematica Bohemica},
     pages = {407--422},
     publisher = {mathdoc},
     volume = {132},
     number = {4},
     year = {2007},
     doi = {10.21136/MB.2007.133967},
     mrnumber = {2365324},
     zbl = {1174.06314},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2007.133967/}
}