E print: https://doi.org/10.1051/proc/201759056
E print http://lanl.arxiv.org/abs/1708.02411
E print https://arxiv.org/abs/1704.02638
E-print: http://lanl.arxiv.org/abs/1509.07710
E print: arXiv:1508.00275v2
E print: arXiv:1506.03758
E print http://xxx.lanl.gov/abs/1501.00434
E print http://xxx.lanl.gov/abs/1412.0141
E print http://arxiv.org/abs/1310.5114
E print http://arxiv.org/abs/1409.3296
E print http://xxx.lanl.gov/abs/1406.5022
E print http://xxx.lanl.gov/abs/1311.6262
E print: arXiv:1311.0810
E print http://arxiv.org/abs/1307.5319
E print http://arxiv.org/pdf/1209.0453.pdf
E print http://arxiv.org/abs/1204.0922
E print http://arxiv.org/abs/1105.1694
E print http://arxiv.org/abs/1106.3016