@article{JSFU_2020_13_3_a10,
     author = {Vladimir A. Kyrov},
     title = {Commutative hypercomplex numbers and the geometry of two sets},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {373--382},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2020_13_3_a10/}
}