@Override
	public RealDistribution totalDemand() {
		try {
			return (NormalDistribution) Convoluter.convolute(orderDistributions);
		} catch (ConvolutionNotDefinedException e) {
			throw new RuntimeException("Could not convolute aggregated demand in NormalDistributedLotSizingPeriod becaus of"
					+ "ConvolutionNotDefinedException. This should not happen. Please consider submitting a detailed bug report.");
		}
	}