Кострюков (Kostriukov)С. (Sergej) Г. (Gennad’evich); Арасланкин (Araslankin)С. (Sergej) В. (Valer’evich); Петров (Petrov)П. (Pavel) С. (Sergeevich). DETERMINATION OF DEGREE OF SUBSTITUTION (DS) AND MOLAR SUBSTITUTION (MS) OF CELLULOSE ETHERS BY SOLID-STATE 13C NMR SPECTROSCOPY. JCPRM 2017, 31-40.