Nonlocal defect solitons in parity-time-symmetric superlattices with defocusing nonlinearity Limin Fang, Jie Gao, Zhiwei Shi, Xing Zhu and Huagang Li Eur. Phys. J. D, 68 10 (2014) 298 Published online: 16 October 2014 DOI: 10.1140/epjd/e2014-50266-4