За отношението на агентивните съществителни имена с наставка -тел(ь) към вида на глаголната им основа (по материал от руския и българския език)

Nomina agentis with the -тел(ь) suffix in Russian and Bulgarian can be formed from both perfective and imperfective verbs. The aspectual semantics of the verb is not preserved in the stem of the derived noun. The aspectual nuances in the meaning of the noun (permanent and impermanent characteristics, perfective or imperfective character of the action) do not depend on the aspect of the underlying stem.