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diff --git a/src/Text/Pandoc/Readers/RIS.hs b/src/Text/Pandoc/Readers/RIS.hs
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+++ b/src/Text/Pandoc/Readers/RIS.hs
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+{- |
+   Module      : Text.Pandoc.Readers.RIS
+   Copyright   : Copyright (C) 2022 John MacFarlane
+   License     : GNU GPL, version 2 or above
+
+   Maintainer  : John MacFarlane <[email protected]>
+   Stability   : alpha
+   Portability : portable
+
+Parses RIS bibliographies into a Pandoc document
+with empty body and `references` and `nocite` fields
+in the metadata.  A wildcard `nocite` is used so that
+if the document is rendered in another format, the
+entire bibliography will be printed.
+-}
+module Text.Pandoc.Readers.RIS
+  ( readRIS
+  )
+where
+
+import Text.Pandoc.Options
+import Text.Pandoc.Definition
+import Citeproc (Reference(..), ItemId(..), Val(..), Date(..), DateParts(..))
+import qualified Citeproc
+import Text.Pandoc.Builder as B
+import Text.Pandoc.Error (PandocError(..))
+import Text.Pandoc.Class (PandocMonad)
+import Text.Pandoc.Citeproc.MetaValue (referenceToMetaValue)
+import Text.Pandoc.Sources (Sources(..), ToSources(..), sourcesToText)
+import Text.Pandoc.Citeproc.BibTeX (toName)
+import Control.Applicative ((<|>))
+import Control.Monad.Except (throwError)
+import Control.Monad (mzero, unless)
+import qualified Data.Text.Lazy as TL
+import qualified Data.Text as T
+import Data.Text (Text)
+import qualified Data.Map as M
+import Safe (readMay)
+
+-- | Read RIS from an input string and return a Pandoc document.
+-- The document will have only metadata, with an empty body.
+-- The metadata will contain a `references` field with the
+-- bibliography entries, and a `nocite` field with the wildcard `[@*]`.
+readRIS :: (PandocMonad m, ToSources a)
+        => ReaderOptions -> a -> m Pandoc
+readRIS _opts inp = undefined
+