@article{10_21136_MB_1997_126209,
     author = {Chajda, Ivan},
     title = {J\'onsson's lemma for normally presented varieties},
     journal = {Mathematica Bohemica},
     pages = {381--382},
     publisher = {mathdoc},
     volume = {122},
     number = {4},
     year = {1997},
     doi = {10.21136/MB.1997.126209},
     mrnumber = {1489399},
     zbl = {0897.08009},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.21136/MB.1997.126209/}
}