SERGIEVICH T, MELESHKO Y. DIRECTIONS OF MODERNIZATION OF WATER-AND-DRAIN EQUIPMENT OF BELARUS AND CRITERIA FOR ITS EFFICIENCY. Вестник Полоцкого государственного университета. Серия D. Экономические и юридические науки [Internet]. 2020Oct.30 [cited 2024May19];(13):71-6. Available from: https://journals.psu.by/economics/article/view/1969