@article{10_21136_MB_2003_133930,
     author = {Jakub{\'\i}kov\'a-Studenovsk\'a, Danica},
     title = {On a cancellation law for monounary algebras},
     journal = {Mathematica Bohemica},
     pages = {77--90},
     publisher = {mathdoc},
     volume = {128},
     number = {1},
     year = {2003},
     doi = {10.21136/MB.2003.133930},
     mrnumber = {1974547},
     zbl = {1014.08006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2003.133930/}
}