Effects of resonant interminiband Zener tunneling on the terahertz frequency radiation in superlatticesPeng Han, Kui-juan Jin, Yueliang Zhou, Qing-li Zhou, Hui-bin Lu, Dong-yi Guan and Guo-zhen YangEurophys. Lett., 72 6 (2005) 1011-1017DOI: https://doi.org/10.1209/epl/i2005-10332-7