@article{ZNSL_1977_70_a10,
     author = {P. S. Pankov and S. L. Dolmatov},
     title = {Use of a computer to find the number of regular pentagons that can simultaneously touch a given one},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {169--177},
     year = {1977},
     volume = {70},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_70_a10/}
}