@article{IM2_2021_85_6_a7,
     author = {A. L. Semenov and S. F. Soprunov},
     title = {Lattice of definability (of reducts) for integers with successor},
     journal = {Izvestiya. Mathematics },
     pages = {1257--1269},
     publisher = {mathdoc},
     volume = {85},
     number = {6},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2021_85_6_a7/}
}