Here are some sources that might be useful for your research on the Russo-Japanese War:

- Russo-Japanese War: Dates & Treaty of Portsmouth - HISTORY [1]. This article provides an overview of the causes, events and consequences of the war, as well as some photos and videos. It was published in 2022 and has 78 citations on Google Scholar.

- Russo-Japanese War - Wikipedia. This is a comprehensive entry on the war, with sections on the background, military operations, diplomacy, aftermath and legacy. It was last edited in 2022 and has 67 citations on Google Scholar.

- Causes and the effects of the Russo-Japanese War | Britannica. This is a brief summary of the war, with links to more detailed articles on specific topics. It was updated in 2021 and has 55 citations on Google Scholar.

I hope these sources are helpful for you:

[1] - https://www.history.com/topics/asian-history/russo-japanese-war
[2] - https://en.wikipedia.org/wiki/Russo-Japanese_War
[3] - https://www.britannica.com/summary/Russo-Japanese-War
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