@article{10_21136_MB_2003_134040,
     author = {K\"uhr, Jan},
     title = {Pseudo $BL$-algebras and $DR\ell $-monoids},
     journal = {Mathematica Bohemica},
     pages = {199--208},
     publisher = {mathdoc},
     volume = {128},
     number = {2},
     year = {2003},
     doi = {10.21136/MB.2003.134040},
     mrnumber = {1995573},
     zbl = {1024.06005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2003.134040/}
}