diff --git a/app/controllers/personal_journals_controller.rb b/app/controllers/personal_journals_controller.rb
index 5c63913..b5512b0 100644
--- a/app/controllers/personal_journals_controller.rb
+++ b/app/controllers/personal_journals_controller.rb
@@ -36,8 +36,8 @@ class PersonalJournalsController < ApplicationController
           journal_papers_show = journal_papers_temp.select {|value| search_all_words((value.send("publication_date").strftime("%Y/%m/%d") rescue ""), params[:keywords])}
       when "author_type"
           journal_papers_show = journal_papers_temp.select {|value| search_all_words(value.journal_paper_author_types.collect{|jat| jat.title}.join(", "), params[:keywords])}
-      when "paper_types"
-          journal_papers_show = journal_papers_temp.select {|value| search_all_words(value.journal_paper_types.collect{|x| x.title}.join(", "), params[:keywords])}
+      when "paper_type"
+          journal_papers_show = journal_papers_temp.select {|value| search_all_words(value.journal_paper_type.collect{|x| x.title}.join(", "), params[:keywords])}
       when "language"
           journal_papers_show = journal_papers_temp.select {|value| search_all_words((!value.language.nil? ? t("#{value.language}") : ""), params[:keywords])}
       else
@@ -70,8 +70,8 @@ class PersonalJournalsController < ApplicationController
           t << {"value" => (journal_paper.send(fs).strftime("%Y/%m") rescue "")}
         when "author_type"
           t << {"value" => (journal_paper.journal_paper_author_types.collect{|jat| jat.title}.join(", ") rescue "")}
-        when "paper_types"
-          t << {"value" => ( !journal_paper.journal_paper_types.blank? ? "(#{journal_paper.journal_paper_types.collect{|x| x.title}.join(', ')})" : nil)} 
+        when "paper_type"
+          t << {"value" => ( !journal_paper.journal_paper_type.blank? ? "(#{journal_paper.journal_paper_type.collect{|x| x.title}.join(', ')})" : nil)} 
         when "language"
           t << {"value" => (!journal_paper.language.nil? ? t("#{journal_paper.language}") : "")}
         else