<https://dimag.ibs.re.kr/2019/zi-xia-song-talk/#article>
<http://schema.org/headline>
"Zi-Xia Song (宋梓霞) gave a talk on Ramsey numbers under Gallai colorings at the discrete math seminar"
<https://dimag.ibs.re.kr/2019/zi-xia-song-talk/>