Nonlocal string orders and entanglement spectrum in the spin-1/2 alternating Heisenberg-Ising chain Guang-Hua Liu, Wei Li, Gang Su and Guang-Shan Tian Eur. Phys. J. B, 87 5 (2014) 105 Published online: 05 May 2014 DOI: 10.1140/epjb/e2014-50150-1