“…However, the question of why there are so few long- Fortunately, some of the problems may be solved in forthcoming years through methodological advances and the discovery of new loess profiles. Recently, several important exposures such as those at Ruma and Nosak in Serbia (Marković et al, 2006(Marković et al, , 2014b, Ljubenovo and Viatovo in Bulgaria (Jordanova et al, 2007(Jordanova et al, , 2008 and Mircea Voda in Romania (Buggle et al, 2009;Timar et al, 2010) have been promoted as new important sites while advances in luminescence techniques, for example, have greatly improved the accuracy of the Danube loess stratigraphy beyond the last glacial cycle (e.g. Thiel et al, 2011).…”