Umarov B. 0009-0002-8145-4997 DEVELOPMENT OF BOUNDARY CONDITIONS FOR MATHEMATICAL MODELS OF UNSTEADY WATER MOVEMENT IN WATER MANAGEMENT FACILITIES. STJ NamIET [Internet]. 2024 Jun. 29 [cited 2024 Sep. 19];9(2):184-8. Available from: http://niet.uz/index.php/nj/article/view/408