[1]
Skrypnyk, V.I. 2020. Periodic Coulomb dynamics of two equal negative charges in the field of six equal positive fixed charges.
Ukrains’kyi Matematychnyi Zhurnal
. 72, 12 (Dec. 2020), 1682–1696. DOI:
https://doi.org/10.37863/umzh.v72i12.917
.