Andrusyk, Yaroslav     Propagation of elastic-tough-plastic wave in a rod of ideally plastic materialwhich possesses the property of yield delay [Текст] / Yaroslav Andrusyk // Ukrainian Journal of Mechanical Engineering and Materials Science / ed.-in-chief Oleksiy Lanets. — Lviv : Lviv Polytechnic Nat. Univ., 2015. — Р. 51–66.