2007 enlargement of the European Union - Wikipedia
Bulgaria and the Enlargement of the European Union (2)
Bulgaria in the EU: expectations and outcomes (news article)
Netherlands Drops Its Veto Against Bulgaria's Schengen Accession - Bloomberg
PM Denkov: Bulgarian and Romanian Schengen accession will make Europe stronger - PubAffairs Bruxelles
For North Macedonia, The Road To The EU Is A Bitter Slog
Bulgaria and Romania worried that corruption may delay accession to border-free area
Bulgaria gives up its goal to join eurozone in 2024 – Euractiv
Bulgaria says to block EU accession talks with North Macedonia – Euractiv
Bulgaria Blocks EU Accession Negotiations with North Macedonia | Warsaw Institute
EU reluctant to expand Schengen Area – DW – 02/20/2018
Bulgaria signs the Treaty of Accession to the European Union (Luxembourg, 25 April 2005) - CVCE Website
Schengen Barrier of Bulgaria and Romania — ANKASAM | Ankara Center for Crisis and Policy Studies
EU membership and its influence on the Bulgarian tourism industry (kartoniertes Buch) | Friedrich Schaumburg
Signing of the Treaty of Accession of Bulgaria and Romania to the EU: General view (Luxembourg, 25 April 2005) - CVCE Website
Western Europe Fearful of Roma Immigrants from Romania and Bulgaria - DER SPIEGEL
Bulgarian MPs open path for North Macedonia's EU accession talks – POLITICO
Visit World - Bulgaria and Romania will partially join the Schengen area: what is known
Staying Positive: Bulgaria in the EU - Emerging Europe
Treaty of Accession 2005 - Wikipedia
Bulgaria and the euro - Wikipedia
Accession Processes of Croatia, Romania, and Bulgaria to the Schengen Area — ANKASAM | Ankara Center for Crisis and Policy Studies
Bulgarian parliament votes to lift veto on EU accession talks with North Macedonia
Second-class Europeans? The vetoing of Bulgaria and Romania's accession into the Schengen area
Partial Schengen Accession for Romania and Bulgaria Takes Effect in 2024
