On fourth-degree polynomial integrals of the Birkhoff billiard
Crossref DOI link: https://doi.org/10.1134/S0081543816080022
Published Online: 2017-01-25
Published Print: 2016-11
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Bialy, M.
Mironov, A. E.
License valid from 2016-11-01