Gross, Stephen (February 2012). "Selling Germany in South-Eastern Europe: Economic Uncertainty, Commercial Information and the Leipzig Trade Fair 1920-40". Contemporary European History. 21: 19–39. doi:10.1017/S096077731100052X. S2CID163461376.
Gross, Stephen (February 2012). "Selling Germany in South-Eastern Europe: Economic Uncertainty, Commercial Information and the Leipzig Trade Fair 1920-40". Contemporary European History. 21: 19–39. doi:10.1017/S096077731100052X. S2CID163461376.