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\bibitem{MaryJoy_etal2023} {\textquotedblleft}\textit{Germanium vacancy centre formation in CVD nanocrystalline diamond using a solid dopant source}{\textquotedblright}. Mary Joy R, Pobedinskas P, Bourgeois E, Chakraborty T, G{\"o}rlitz J, Herrmann D, No{\"e}l C, Heupel J, Jannis D, Gauquelin N, D{\textquoteright}Haen J, Verbeeck J, Popov C, Houssiau L, Becher C, Nesl{\'a}dek M, Haenen K, Science talks \textbf{5}, 100157 (2023).   http://doi.org/10.1016/j.sctalk.2023.100157

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