The phrase "mentioned explicitly in" is correct and can be used in written English.
It is typically used when an idea or statement was explicitly stated or written in a particular context. For example, "The details of the plan were mentioned explicitly in the official document."
Ireland had been mentioned explicitly in June.
In Schultz's world, money is obviously such a deep subtext that it can never be mentioned explicitly in public, even if it's only a joke, only a dime.
Although not mentioned explicitly in the report, Stamos's team had searched extensively for evidence of foreign purchases of political advertising but had come up short.
The war, never mentioned explicitly in the text, is lightly gestured at in Janet's pictures: a bombed-out building in the far distance; a gas-mask box hanging off the end of a bed-knob; the poignancy of the father dressed in uniform as he kisses his baby son goodnight at the end of the story.
He may have been too busy having the experiences of the century to devote himself, over a sufficiently long period of time, to the one great work that would stand, like "Ulysses" (mentioned explicitly in Chapter Ten), as one of the century's monuments.
Their names have not been mentioned explicitly in order to protect their privacy.
The presence of death is felt throughout the poem, although it is mentioned explicitly only in the final line.
Time constraints were mentioned explicitly by the participants in the qualitative study.
Golszmidt and Pearl conjecture a complete characterization of ranking systems constrained by associated DAGs, and offer a specific Markov axiom mentioning explicitly interventions in DAGs.
17. (C) Briens argued that Iran is the most serious problem for the NPT, and France was the only Party that mentioned it explicitly in its general statement to the recent PrepCom.
Two such factions concerned Eisenhower enough that he mentioned them explicitly in the speech.
