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Jamet, Matthieu; Barski, André; Devillers, Thibaut; Poydenot, Valier; Dujardin, Romain; Bayle-Guillemaud, Pascale; Rothman, Johan; Bellet-Amalric, Edith; Marty, Alain; Cibert, Joël. (2006). High-Curie-temperature ferromagnetism in self-organized Ge1−xMnx nanocolumns. , 5(8), 653–659. doi:10.1038/nmat1686 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research