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Pati, Swapan and Chitra, R and Sen, Diptiman and Ramasesha, S and Krishnamurthy, HR (1997) A comparative study of the phase diagrams of spin-1/2 and spin-1 antiferromagnetic chains with dimerization and frustration. In: Journal of Physics: Condensed Matter, 9 (1). pp. 219-230.
Chitra, R and Pati, Swapan and Krishnamurthy, HR and Sen, Diptiman and Ramasesha, S (1995) Density-matrix renormalization-group studies of the spin-1/2 Heisenberg system with dimerization and frustration. In: Physical Review B: Condensed Matter, 52 (9). pp. 6581-6587.