The phrase "which is stated" is correct and usable in written English.
You can use it to refer to something that was expressed explicitly or said explicitly in a preceding sentence. For example: "Several countries have declared a state of emergency, which is stated in their official announcements."
"The category before that is best directing, which is stated in three declarative sentences".
SPECIAL CASE, the material part of which is stated in the judgment of the Court.
One work repeatedly quotes a definition of promiscuous by Gratian, a medieval theologian, which is stated in exclusively female terms.
Indeed, the lesson of outsourcing public services is that it often freezes out future innovation; only that which is stated within the contract will be carried out.
The petitioners assert their rights as rights arising under the Railway Labor Act, which is stated to be a law of the United States relating to interstate commerce.
This model does not predict composition and temperature profile of pyrolysis zone, which is stated to be a precursor for gasification.
Generally speaking, for every percentage point that interest rates rise (or fall), a bond's value will decline (or increase) by its duration, which is stated in years.
These elements are all subordinate to the political thesis which they dramatize and which is stated baldly and explicitly throughout the book.
"By that standard, should reporters and the country essentially wait for a pronouncement from the President before believing that which is stated on his behalf by the White House communications staff?" he said.
Like all other papal bulls, the 1567 bull has been endowed with perpetual validity in accordance with the formula "ad perpetuam rei memoriam" ("for a permanent record of the matter"), which is stated in its very beginning.
In the description of the supernova G350.1-0.3 whish istateded to be 15000 light years away it would not be possible to see it if it only went supernova 600 -1200 years ago.
