Most deverbal forms occur primarily in written Russian, although the short forms of past passive participles and the present deverbal adverbs also occur in conversational style.
The formation and use of the deverbal adverbs is discussed in: The use of the four participial forms (long adjectives) is discussed in: They can be succinctly summarized as follows:
Written style participles = Conversational style котћрый clauses.