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Teodoro Coba de la Peña; Francisco J. Redondo; Esteban Manrique; M. M. Lucas; José J. Pueyo. (2010). Nitrogen fixation persists under conditions of salt stress in transgenic <em>Medicago truncatula</em> plants expressing a cyanobacterial flavodoxin. , 8(9), 954–965. doi:10.1111/j.1467-7652.2010.00519.x 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research