Romenskij, V. I Study of the operating time of the protective coating of surfaces of assembly and welding equipment / V. I Romenskij, V. V Nevljudova, E. Ju Persijanova. Nevljudova, V. V.. Persijanova, E. Ju In: Sučasnij stan naukovych boslibžeň ta technologij v promislovosti. -- ISSN 2522-9818. -- No. 1 (11) (2020), s. 134-146.