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Event table notes
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| Event data |
| Place: Leningrad |
| Start date: May 1940 |
| End date: May 1940 |
|
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| References |
| Books |
| Di Felice, Chess Results, 1936-1940, page 328 |
| Feenstra Kuiper, 100 Jahre Schachzweikämpfe, page 69 |
| Soltis, Mikhail Botvinnik, page 122 |
| Soltis, Soviet Chess, page 130 |
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