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4
1
4
Serial [ñáîðíèê]
Íàó÷íà êîíôåðåíöèÿ íà ìëàäèòå íàó÷íè ðàáîòíèöè ...
Íàóêà è èêîíîìèêà
Âàðíà
2009-
ãîäèøíèê
ISSN:
1314-4812
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