https://r.nikkei.com/article/DGXMZO39189920Q8A221C1H11A00?s=1
https://www.sankei.com/smp/affairs/news/181228/afr1812280038-s1.html
https://r.nikkei.com/article/DGXMZO3945023027122018916M00
https://jp.reuters.com/article/zozo-stock-idJPKCN1OR096