1. DA4CEU, 2021. Digital Automatic Coupling (DAC) – Project Information. In: dac4.eu [online].
2. Europe’s Rail, 2021. Digital Automatic Coupling. In: shift2rail.org [online].
3. Europe’s Rail, 2021. European Digital Automatic Coupler: first step towards one type selection. In: shift2rail.org [online].
4. UIC 530-1: Constructional conditions for wagons to be observed with a view to fitting the automatic coupler of the Member Railways of the UIC and OSJD respectively.
5. STN EN 12663-2: Railway applications. Structural requirements of railway vehicle bodies. Part 2: Freight wagons.