Fedorchuk, Evdokim     Analysis of cost components of life cycle product by optimization task [Текст] / Evdokim Fedorchuk, Nataliya Tkachenko // Computer science and information technologies CSIT 2010 : proc. of the V Intern. sci. and techn. conf., 14-16 Oct. 2010, Lviv, Ukraine / Lviv Polytechnic Nat. Univ. — Lviv : Publ. House Vezha & Co, 2010. — P. 114-115.