@article{10_4064_fm_76_2_121_130,
     author = {Jan Krempa},
     title = {Logical connections between some open problems concerning nil rings},
     journal = {Fundamenta Mathematicae},
     pages = {121--130},
     publisher = {mathdoc},
     volume = {76},
     number = {2},
     year = {1972},
     doi = {10.4064/fm-76-2-121-130},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-76-2-121-130/}
}