Detecting the Burns temperature in Na0.5Bi0.5TiO3-xBaTiO3 lead-free relaxor ferroelectrics by means of acoustic emissionEvgeniy Dul'kin, Evgeny Mojaev and Michael RothEPL, 124 5 (2018) 57001DOI: https://doi.org/10.1209/0295-5075/124/57001