@article{AMI_2020_52_a10,
     author = {Bir Kafle and Florian Luca and Alain Togb\'e},
     title = {Pentagonal and heptagonal repdigits},
     journal = {Annales mathematicae et informaticae},
     pages = {137--145},
     publisher = {mathdoc},
     volume = {52},
     year = {2020},
     doi = {10.33039/ami.2020.09.002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.33039/ami.2020.09.002/}
}