РУДАКОВ, Игорь Алексеевич.
 NONTRIVIAL PERIODIC SOLUTIONS OF THE SIN-GORDON EQUATION.
<strong>Modern Information Technologies and IT-Education</strong>, [S.l.], v. 14, n. 3, p. 639-646, sep. 2018.
ISSN 2411-1473. Available at: &lt;<a href="http://sitito.cs.msu.ru/index.php/SITITO/article/view/430" target="_new">http://sitito.cs.msu.ru/index.php/SITITO/article/view/430</a>&gt;. Date accessed: 26 apr. 2025.
doi: <a href="https://doi.org/10.25559/SITITO.14.201803.639-646">https://doi.org/10.25559/SITITO.14.201803.639-646</a>.