1. R. N. Bakhtizin, K. R. Urazakov, F. G. Ismagilov, et al., Invention Patent 2365786 RUS, “Well sucker-rod pump,” subm. 03.03.2008.
2. F. G. Ismagilov, Improving Technical Characteristics of Sucker-Rod Pump by Creating Regular Microrelief on Plunger Surface: Auth. Abstr. Dissert. Cand. Techn. Sci. 05.02.13, UGNTU, Ufa (2010).
3. R. N. Bakhtizin, F. G. Ismagilov, and O. G. Gafurov, “Experimental investigation of plunger pair of well pump with regular microrelief on plunger surface,” Neftegaz. Delo, 6, No. 2, 253–257 (2008).
4. K. R. Urazakov, Mechanization of Oil Production (a collection of inventions), Neftegazovoe Delo, Ufa (2010).
5. K. R. Urazakov, R. N. Bakhtizin, B. Kh. Ishmukhametov, et al., Patent for Useful Model No. 165265 RF, “Unit for testing sucker-rod pumps,” subm. 10.10.2016.