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istoria ştiinţei (5) |
istoria ştiinţei tehnice (5) |
history of science (4) |
history of tehnical science (4) |
history of technique (3) |
history of pedagogy (2) |
istoria pedagogiei (2) |
istoria tehnicii (2) |
Beleş Aurel (1) |
Buia Alexandru (1) |
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