The phrase "authoritative means" is correct and usable in written English.
It can be used when referring to methods or ways of obtaining information or enforcing rules that are recognized as valid or reliable.
Example: "The committee decided to use authoritative means to gather data for their research project."
Alternatives: "reliable methods" or "official channels".
The principal reasons for this are the absence of a publicly accessible and morally and legally authoritative means of distinguishing between just and unjust wars, and the absence of an impartial, supranational mechanism for enforcing an asymmetrical code.
(Quoting Engels) "Revolution is an act in which part of the population forces its will on the other parts by means of rifles, bayonets, cannon, i.e., by most authoritative means.
We need to emphasize that "authoritative" means that a work has met some standard of criticism and has been judged a worthy entry into the scholarly conversation by someone or some group, but that it doesn't mean the source is "right" or "true," and it doesn't necessarily mean other sources aren't also useful or reliable.
Such a subject makes excellence sense of Tsongkhapa's otherwise confusing juxtaposition of Nāgārjuna's analysis with Dharmakīrti's epistemology, in which it is axiomatic that direct sense perception is an authoritative means of knowledge (Sk. pramāṇa).
The arrival of these authoritative publications means that Utzon's work can finally be properly studied by architects and students.
The way Google's search algorithm favours established and authoritative sites means my Guardian profile page will probably retain its number one spot.
Providing teens authoritative parenting means giving them autonomy to make choices within the structure of a home that fosters a connection to family and school.
Despite his occasional pangs of insecurity, Nichols's gentle but authoritative manner meant he was adept at handling actors.
I let my hair down and put on bright lipstick and a V-neck top, markers of authoritative attractiveness meant to be seen from a distance, pathetic signals that I knew from chill, that my threshold for fun was high.
While my experiences are by no means authoritative, I offer them as an imperfect window into Afghanistan's future.
But this latest picture, from authoritative census data, means that their presence is starting to turn up at the city level in a broader way, and in some unexpected places.
