Defence of PhD thesis
Text Organization of German Folk-Spoken Language of the Personality (2011).

Peer review articles
1) Precedent texts in the discourse of a person – native speaker of the German folk informal language of Siberia. Tomsk State University Bulletin. 2010. № 334. P. 15-18.
2) The metaphor in the discourse of the ordinary personality – the native speaker of the German-speaking discourse of Siberia. Leningrad State University Bulletin. 2010. V 1 (3). P. 195-204.
3) The specific of informative speech genres in the discourse of the native speaker of the German people’s spoken language of Siberia. Tomsk State Pedagogical Bulletin. 2011. V 9 (111). P. 59-63.
4) The specific of the use of the precedential names in the discourse of the native speaker of the German people’s spoken language of Siberia. Tomsk State Pedagogical Bulletin. 2012. V 10 (125). P. 44-47.
5) Peculiarity of precedent name use in speech of a representative of the Russian Germans of Siberia. Volgograd State Pedagogical Bulletin. 2012. V 11 (75). P. 85-88.
6) Peculiarities of explication of metalinguistic consciousness in the speech of representatives of the Russian Germans of Siberia: genre aspect. Tomsk State Pedagogical Bulletin. 2013. V 10 (138). P. 64-71.
7)  Anthropocentrism as an important feature of modern linguistics. Kemerovo State University Bulletin. 2014. V 1 (2). P. 198-203.
8) Interpretation of “Speech genre” in the works of domestic researchers.  Leningrad State University Bulletin. 2014. V 1 (2). P. 181-186.

Contests and grants
1. The winner of the contest "Individual grant of young scientist of TPU" in the field of "Social and sciences and humanities" (2010), 
2. The winner of competition for young scientists “Text Characteristics of Verbal Communication of the Personality - the Representative of the Russian Germans” organized by Russian Humanity Science Foundation (2014).

Scientific activity of students guided by Kostomarov P.I.
Students of P.I. Kostomarov became winners and were awarded with diplomas of I degree for participation in scientific conferences:

1. Sergei Maximov (fourth year student of Institute of Power Engineering, 2012)
2. Marina Tesmonar(fourth year student of Institute of Power Engineering, 2010)
3. Yuri Monich (third year student of Institute of Power Engineering, 2013)

Student of P.I. Kostomarov became prize-winners of the competition of translators of scientific and technical literature on electricity and electronics topics organized by the Russian National Committee of the International Council on Large Electric Systems of High Voltage (Moscow)

Viktor Safonov (third year student of Institute of Power Engineering, 2013)

Conferences
In the period from 2012 to 2014 P.I. Kostomarov was the scientific secretary of the conference "Language and World Culture: A View of Young Researchers" held in Institute of Power Engineering of TPU.