А study on the impact of an increase incrude oil price and the us dollar exchange rate on the capabilities of an emergency medical aid centre to serve patients

(). А study on the impact of an increase incrude oil price and the us dollar exchange rate on the capabilities of an emergency medical aid centre to serve patients. // <I>Proc.<D> Union of scientists - Ruse, 14, 2017, Book 5. Mathematics, informatics and physics, p. 50-54.. (4371),