Recommended by the Academic Council of the Lviv Polytechnic National University (protocol № 5–1(119) 28.12.2012.
Submitted at the meeting of the editorial board of the collection 20.12.2015.
Recommended by the Academic Council of the Lviv Polytechnic National University (protocol № 5–1(119) 28.12.2012.
Submitted at the meeting of the editorial board of the collection 20.12.2015.