@book{150701,
	author = {Borodavkin, P.P. and Institute of Petrochemical and Gas Industry (URSS) and World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and Berezin, V.L. and Institute of Petrochemical and Gas Industry (URSS)},
	title = {Optimum main oil pipeline design theory and practice}
}