relaton_iho.rb in relaton-iho-1.17.0

- old
+ new

@@ -3,9 +3,10 @@
 require "relaton_bib"
 require "relaton/index"
 require "relaton_iho/version"
 require "relaton_iho/config"
 require "relaton_iho/util"
+require "relaton_iho/document_type"
 require "relaton_iho/iho_bibliography"
 require "relaton_iho/hash_converter"
 require "relaton_iho/xml_parser"
 require "relaton_iho/editorial_group"
 require "relaton_iho/iho_group"