. . . . . . . "Sustainable cellulose solubilization, regeneration and derivatization in a DBU-CO2 switchable solvent system / Kelechukwu Nnabuike Onwukamike ; sous la direction de Henri Cramail et de Michael A. R. Meier / , 2019" . . . "1"^^ . . . . . . . . . . "2019"^^ . . .