Structure of an antiparallel (2+2) G-quadruplex formed by human telomeric repeats in Na+ solution (with G22-to-BrG substitution) - Lim, Kah Wai; Ng, Veronica Chinn Min; Martin-Pintado, Nerea; Heddi, Brahim; Phan, Anh Tuan (Biological Magnetic Resonance Bank, 2013)