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Gu, L., Jiang, Y., & Hu, J. (2017). Synthesis and Properties of Shape Memory Poly(γ-Benzyl-l-Glutamate)-b-Poly(Propylene Glycol)-b-Poly(γ-Benzyl-l-Glutamate). Applied Sciences, 7(12), 1258. doi:10.3390/app7121258 
10.3390/APP7121258