@article{PFMT_2013_4_a6,
     author = {Anatolii V. Zhuchok},
     title = {Free $n$-dinilpotent dimonoids},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {43--46},
     publisher = {mathdoc},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2013_4_a6/}
}