non-directional beacons (NDBs) in Bulgaria :
NDB Bourgas *BU BUL-32 NDB Bozhurishte *BOZ BUL-47 NDB Denya *DWN BUL-33 NDB Golyama *GOL BUL-35 NDB Gorna *GNA BUL-36 NDB Kamenar *KMN BUL-90 NDB Kavarna DGPS BUL-25 NDB Lyulyakovo *LKW BUL-65 NDB Plovdiv *PDV BUL-39 NDB Rousse *R BUL-69 NDB Rousse *RUS BUL-41 NDB Sofia *SOF BUL-42 NDB Vakarel *WAK BUL-44 .
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