Yu, Lili, Hui Wu, Beina Wu, Ziyi Wang, Hongmei Cao, Congying Fu, and Nengqin Jia. 2014. “Magnetic Fe3O4-Reduced Graphene Oxide Nanocomposites-Based Electrochemical Biosensing”. Nano-Micro Letters 6 (3):258-67. https://doi.org/10.1007/BF03353790.