@article{10_37236_8580,
     author = {Svetlana Puzynina},
     title = {Aperiodic two-dimensional words of small abelian complexity},
     journal = {The electronic journal of combinatorics},
     year = {2019},
     volume = {26},
     number = {4},
     doi = {10.37236/8580},
     zbl = {1423.68374},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/8580/}
}