title: 17.alpha.(H)-21.beta.(H)-hopane as a conserved internal marker for estimating the biodegradation of crude oil.
authors.forename: R C
authors.initials: RC
authors.lastname: Prince
authors.forename: D L
authors.initials: DL
authors.lastname: Elmendorf
authors.forename: J R
authors.initials: JR
authors.lastname: Lute
authors.forename: C S
authors.initials: CS
authors.lastname: Hsu
authors.forename: C E
authors.initials: CE
authors.lastname: Haith
authors.forename: J D
authors.initials: JD
authors.lastname: Senius
authors.forename: G J
authors.initials: GJ
authors.lastname: Dechert
authors.forename: G S
authors.initials: GS
authors.lastname: Douglas
authors.forename: E L
authors.initials: EL
authors.lastname: Butler