Queen's Gambit Declined, Mainlines, Plans & Strategies, Mainlines with 5.Bf4

Queen's Gambit Declined is probably Black's most solid response to 1.d4. This opening is especially effective when White has already committed to Nf3.

Queen's Gambit Declined - Repertoire for Black after 1.d4 Nf6 2.c4 e6 3.Nf3 d5 (2h and 40 min Running Time)

Queen's Gambit Declined Mainlines, Plans & Strategies

The Queen's Gambit Declined: 5 Bf4! - Crouch, Colin: 9781857442076

Budapest Gambit - Wikipedia

Starting Out: Queen's Gambit Declined by McDonald, Neil

Alexei Kornev A Practical White Rep With 1 d4 and 2 c4 Vol 1

The Ultimate Queen's Pawn Opening Guide - Chessable Blog

The Ultimate Queen's Pawn Opening Guide - Chessable Blog

The Magnus Queens Gambit

Videos - Internet Chess Club