Віткін, Л. М., Хімічева, Г. І., Паскевський, О. І., & Чорна, І. А. (2013). Improvement of methodical approaches to building of integrated management systems at metallurgical industry enterprises. Eastern-European Journal of Enterprise Technologies, 1(3(61), 62–65. https://doi.org/10.15587/1729-4061.2013.9180