Nikolaev, R., Milkova, T. Two-Dimensional Problem for Using the Resources with Inconstant Expense Rates. Varna: Union of Scientists - Varna, 2021 с. 141-148, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Nikolaev, R., Milkova, T. Two-Dimensional Problem for Using the Resources with Inconstant Expense Rates. Varna: Union of Scientists - Varna, 2021 с. 141-148, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Nikolaev, R., Milkova, T. (2021) Two-Dimensional Problem for Using the Resources with Inconstant Expense Rates, Varna: Union of Scientists - Varna с. 141-148, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Nikolaev, R., & Milkova, T. (2021). Two-Dimensional Problem for Using the Resources with Inconstant Expense Rates. Varna: Union of Scientists - Varna, с. 141-148.
Nikolaev R, Milkova T. Two-Dimensional Problem for Using the Resources with Inconstant Expense Rates. Varna: Union of Scientists - Varna; 2021. p. с. 141-148. ISBN: ISSN 1314-7390 (рrint) ; 2603-4085 (online).