+=pod
+
+=head3 get_dict ()
+
+Returns the dictionary associated with the reader.
+
+=head3 get_next_case ()
+
+Retrieves the next case from the reader.
+This method returns an array of scalars, each of which are the values of
+the data in the system file.
+The first call to C<get_next_case> after C<open> has been called retrieves
+the first case in the system file. Each subsequent call retrieves the next
+case. If there are no more cases to be read, the function returns an empty
+list.
+
+If the case contains system missing values, these values are set to the
+empty string.
+
+=head2 Miscellaneous subroutines
+
+The following subroutines provide (hopefully) useful information about the
+values retrieved from a reader.