diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..cc32da4
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1 @@
+inherit_from: .rubocop_todo.yml
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
new file mode 100644
index 0000000..91572f1
--- /dev/null
+++ b/.rubocop_todo.yml
@@ -0,0 +1,262 @@
+# This configuration was generated by
+# `rubocop --auto-gen-config`
+# on 2020-03-09 13:28:58 +0100 using RuboCop version 0.80.1.
+# The point is for the user to remove these configuration records
+# one by one as the offenses are removed from the code base.
+# Note that changes in the inspected code, or installation of new
+# versions of RuboCop, may require this file to be generated again.
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Layout/EmptyLineAfterGuardClause:
+  Exclude:
+    - 'lib/parseable_date_validator.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Layout/EmptyLines:
+  Exclude:
+    - 'config/application.rb'
+
+# Offense count: 3
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: empty_lines, no_empty_lines
+Layout/EmptyLinesAroundBlockBody:
+  Exclude:
+    - 'config/environments/development.rb'
+    - 'db/schema.rb'
+
+# Offense count: 3
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: empty_lines, empty_lines_except_namespace, empty_lines_special, no_empty_lines, beginning_only, ending_only
+Layout/EmptyLinesAroundClassBody:
+  Exclude:
+    - 'config/application.rb'
+    - 'lib/parseable_date_validator.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyleAlignWith, AutoCorrect, Severity.
+# SupportedStylesAlignWith: keyword, variable, start_of_line
+Layout/EndAlignment:
+  Exclude:
+    - 'app/views/search/index.rss.builder'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: AllowForAlignment, AllowBeforeTrailingComments, ForceEqualSignAlignment.
+Layout/ExtraSpacing:
+  Exclude:
+    - 'bin/rails'
+    - 'config.ru'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: AllowDoxygenCommentStyle, AllowGemfileRubyComment.
+Layout/LeadingCommentSpace:
+  Exclude:
+    - 'config/application.rb'
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: final_newline, final_blank_line
+Layout/TrailingEmptyLines:
+  Exclude:
+    - 'config/initializers/assets.rb'
+    - 'config/initializers/cookies_serializer.rb'
+
+# Offense count: 1
+Lint/InterpolationCheck:
+  Exclude:
+    - 'app/controllers/search_controller.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Lint/SendWithMixinArgument:
+  Exclude:
+    - 'config/initializers/kaminari_config.rb'
+
+# Offense count: 3
+# Configuration parameters: AllowComments.
+Lint/SuppressedException:
+  Exclude:
+    - 'bin/rails'
+    - 'bin/rake'
+    - 'bin/rspec'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: AllowUnusedKeywordArguments, IgnoreEmptyMethods.
+Lint/UnusedMethodArgument:
+  Exclude:
+    - 'lib/parseable_date_validator.rb'
+
+# Offense count: 2
+Lint/UselessAssignment:
+  Exclude:
+    - 'lib/parseable_date_validator.rb'
+    - 'spec/features/basic_search_spec.rb'
+
+# Offense count: 4
+Metrics/AbcSize:
+  Max: 58
+
+# Offense count: 9
+# Configuration parameters: CountComments, ExcludedMethods.
+# ExcludedMethods: refine
+Metrics/BlockLength:
+  Max: 203
+
+# Offense count: 1
+Metrics/CyclomaticComplexity:
+  Max: 9
+
+# Offense count: 4
+# Configuration parameters: CountComments, ExcludedMethods.
+Metrics/MethodLength:
+  Max: 57
+
+# Offense count: 1
+Metrics/PerceivedComplexity:
+  Max: 10
+
+# Offense count: 1
+# Configuration parameters: MinNameLength, AllowNamesEndingInNumbers, AllowedNames, ForbiddenNames.
+# AllowedNames: io, id, to, by, on, in, at, ip, db, os, pp
+Naming/MethodParameterName:
+  Exclude:
+    - 'app/models/paper_search.rb'
+
+# Offense count: 2
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: snake_case, normalcase, non_integer
+Naming/VariableNumber:
+  Exclude:
+    - 'spec/features/search_filters_spec.rb'
+
+# Offense count: 15
+Style/Documentation:
+  Exclude:
+    - 'spec/**/*'
+    - 'test/**/*'
+    - 'app/controllers/application_controller.rb'
+    - 'app/controllers/geo_controller.rb'
+    - 'app/controllers/import_controller.rb'
+    - 'app/controllers/search_controller.rb'
+    - 'app/helpers/search_helper.rb'
+    - 'app/models/importer.rb'
+    - 'app/models/paper.rb'
+    - 'app/models/paper_search.rb'
+    - 'app/models/user.rb'
+    - 'config/application.rb'
+    - 'db/migrate/20141117201926_create_users.rb'
+    - 'db/migrate/20150413193656_create_papers.rb'
+    - 'db/migrate/20150517152218_create_importers.rb'
+    - 'db/migrate/20151010070158_create_paper_searches.rb'
+    - 'lib/parseable_date_validator.rb'
+
+# Offense count: 1
+Style/DoubleNegation:
+  Exclude:
+    - 'app/controllers/application_controller.rb'
+
+# Offense count: 9
+# Cop supports --auto-correct.
+Style/ExpandPathArguments:
+  Exclude:
+    - 'Rakefile'
+    - 'bin/bundle'
+    - 'bin/rails'
+    - 'bin/rake'
+    - 'bin/rspec'
+    - 'config/application.rb'
+    - 'config/boot.rb'
+    - 'config/environment.rb'
+
+# Offense count: 34
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle.
+# SupportedStyles: always, always_true, never
+Style/FrozenStringLiteralComment:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, UseHashRocketsWithSymbolValues, PreferHashRocketsForNonAlnumEndingSymbols.
+# SupportedStyles: ruby19, hash_rockets, no_mixed_keys, ruby19_no_mixed_keys
+Style/HashSyntax:
+  Exclude:
+    - 'config/routes.rb'
+
+# Offense count: 7
+# Cop supports --auto-correct.
+Style/IfUnlessModifier:
+  Exclude:
+    - 'app/models/paper_search.rb'
+    - 'app/views/search/index.rss.builder'
+    - 'spec/rails_helper.rb'
+
+# Offense count: 5
+# Cop supports --auto-correct.
+# Configuration parameters: .
+# SupportedStyles: call, braces
+Style/LambdaCall:
+  EnforcedStyle: braces
+
+# Offense count: 2
+Style/MultilineTernaryOperator:
+  Exclude:
+    - 'app/controllers/search_controller.rb'
+    - 'spec/features/basic_search_spec.rb'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: Strict.
+Style/NumericLiterals:
+  MinDigits: 15
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: PreferredDelimiters.
+Style/PercentLiteralDelimiters:
+  Exclude:
+    - 'Guardfile'
+
+# Offense count: 45
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, ConsistentQuotesInMultiline.
+# SupportedStyles: single_quotes, double_quotes
+Style/StringLiterals:
+  Exclude:
+    - 'Guardfile'
+    - 'bin/rails'
+    - 'bin/rake'
+    - 'bin/rspec'
+    - 'db/schema.rb'
+    - 'lib/parseable_date_validator.rb'
+    - 'lib/tasks/import_papers.rake'
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: MinSize.
+# SupportedStyles: percent, brackets
+Style/SymbolArray:
+  EnforcedStyle: brackets
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: WordRegex.
+# SupportedStyles: percent, brackets
+Style/WordArray:
+  EnforcedStyle: percent
+  MinSize: 3
+
+# Offense count: 63
+# Cop supports --auto-correct.
+# Configuration parameters: AutoCorrect, AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
+# URISchemes: http, https
+Layout/LineLength:
+  Max: 148