Direct nitridation synthesis and characterization of Si3N4 nanofibers / M. P. Silenko, A. M. Shlapak, S. S. Petrovska [et.al.] // Research on chemical intermediates. 2015. Vol. 41, № 12. P. 10037-10048. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000578292