Perhaps you should try some spelling variations:
"prague declaration on european science and communism" » "france declaration on european science and communism", "presse declaration on european science and communism", "true declaration on european science and communism", "prague declaration on european defence and communism", "prague declaration on european societies and communism", "prague declaration on european space and communism"
"prague declaration on european society and communism" » "france declaration on european society and communism", "presse declaration on european society and communism", "true declaration on european society and communism", "prague declaration on european solid and communism"

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