Yanovska, E. S., Vretik, L., Nikolaeva, O., Polonska, Y., Sternik, D., Kichkiruk, O. Y.  (2017) Synthesis and Adsorption Properties of 4-Vinylpyridine and Styrene Copolymer In Situ Immobilized on Silica Surface.  Nanoscale Research Letters (12:217).   ISSN 1556-276X