Today the water level is controlled by an artificial outflow, the Einserkanal [de; hu; it; nl; pl], and a sluice on Hungarian territory near Fertőújlak, and bilateral issues are dealt with by the Austro-Hungarian water commission which was established in 1956. However, comparatively minor fluctuations of the lake's level continue to occur. In 1965 the lake gained 100 million cubic metres (3.5 billion cubic feet) of water within a single month, raising its level by 35 cm (14 inches).