EPOXIDE SPECIATION AND FUNCTIONAL GROUP DISTRIBUTION IN GRAPHENE OXIDE PAPER-LIKE MATERIALS Статья Hunt A., Boyko T.D., Bazylewski P., Chang G.S., Moewes A., Dikin D.A., Kurmaev E.Z. Advanced Functional Materials. Wiley-VCH Verlag. Том 22. 2012. С. 3950-3957