sources

n.

the place where something begins, where it springs into being

"Pittsburgh is the source of the Ohio River"

同义词：beginningoriginrootrootage

a person who supplies information

同义词：informant

a publication (or a passage from a publication) that is referred to

"he spent hours looking for the source of that quotation"

同义词：reference

a document (or organization) from which information is obtained

"the reporter had two sources for the story"

a facility where something is available

anything that provides inspiration for later work

同义词：seedgerm

someone who originates or causes or initiates something

同义词：generatorauthor

(technology) a process by which energy or a substance enters a system

"a heat source"; "a source of carbon dioxide"

anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies

同义词：reservoir

Sources, Sinks, and Population Regulation
Dynamic Sources Routing in Ad Hoc Wireless Networks
Authoritative sources in hyperlinked environment
Authoritative sources in a hyperlinked environment
Authoritative sources in a hyperlinked environment
Network information flow-multiple sources
Cancer incidence and mortality worldwide: sources, methods and major patterns in GLOBOCAN 2012
JSTOR is a digital library of academic journals, books, and primary sources.
The Relational View: Cooperative Strategy and Sources of Interorganizational Competitive Advantage
Technical Report: Human Alteration of the Global Nitrogen Cycle: Sources and Consequences