Measurement invariance of the burnout assessment tool (BAT) across seven cross-national representative samples - de Beer, L. T.; Schaufeli, W. B.; De Witte, H.; Hakanen, J. J.; Shimazu, A.; Glaser, J.; Seubert, C.; Bosak, J.; Sinval, J.; Rudnev, M. (International Journal of Environmental Research and Public Health, 2020)