Nuclear research ☊ 
Atomforschung ☊ < 13.18 Physik Nuclear Research ☊ Kernforschung ☊ < 19.20 Atomenergie Nuclear Research ☊ Kernforschungsanlage ☊ < 19.20 Atomenergie Nuclear Research Center ☊ Kernforschungszentrum ☊ < 19.20 Atomenergie | Vie | Eng | |
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