The phrase "asserted that one of" is correct and usable in written English.
It can be used when introducing a claim or statement made by someone regarding a specific subject or item among a group.
Example: "The researcher asserted that one of the key factors influencing climate change is human activity."
Alternatives: "claimed that one of" or "stated that one of".
The Government has asserted that one of Mr. Fazil's duties was to prepare and transmit reports to Mr. bin Laden and his top lieutenants.
The note asserted that one of the men worked for the United States Central Intelligence Agency and that the others were officers of British intelligence.
Later today, Judge Kenyon angrily asserted that one of Mr. Miller's lawyers, Stanley Greenberg, had committed "a deliberate attempt to obstruct justice" and "gross misconduct" by trying to influence the selection of a new lawyer for Mrs. Ogorodnikov.
Another indication of possible waiver appears in an affidavit attached to the State's brief in this Court; there, the respondent asserted that one of petitioner's lawyers stood up as if to object to the officer's tainted testimony, and was pulled down by co-counsel.
Jay Berman, the chief executive of the group, asserted that one of the major reasons for the decline was "the fact that the commercial value of music is being widely devalued by mass copying and piracy," but the group did not offer a specific analysis of the phenomenon, or its impact.
Blackmore [37] and Rafailidis [38], asserted that one of the main factors affecting the performance of roof-mounted wind turbines is the building roof shape (roof effect).
It was a lost weekend for Hernandez, who returned from rehabilitating in Tampa, Fla., on Friday and immediately created a controversy by asserting that one of the Yankees' coaches supposedly said he was not "as hurt as much as I thought".
His treatment begins with the macabre comment that "The Neville Heath story is a gift from heaven". He asserts that one of the seduction sequences "should be the most bloodcurdling scene ever seen on the screen" and that the police's manhunt should be seen "more from the angle of the pursued than the pursuers".
It asserts that one of Mr. bin Laden's most senior associates, who is not named, was the man "responsible for the detailed planning of the attacks," and that at least three hijackers "have already been positively identified as associates of Al Qaeda," Mr. bin Laden's organization.
In this context, Ellenbogen (2012) asserts that one of the most important challenges is closing the gap between experimental research and naturalistic field studies.
In Arianna Huffington's book Thrive, she asserts that one of the pillars to well-being is wonder.
