Analysis of information sources in references of the Wikipedia article "玛丽亚·弗拉基米罗芙娜·沃龙佐娃" in Chinese language version.
Both daughters attended German-language schools and St. Petersburg State University, where Maria studied biology and Yekaterina majored in Asian Studies.
Both daughters attended German-language schools and St. Petersburg State University, where Maria studied biology and Yekaterina majored in Asian Studies.