diff --git a/core/includes/common.inc b/core/includes/common.inc
index f40565a..c0a0151 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -129,6 +129,8 @@
  * @deprecated in Drupal 8.0.x-dev, will be removed before Drupal 9.0.0.
  *   Use \Drupal\Core\StringTranslation\PluralTranslatableMarkup::DELIMITER
  *   instead.
+ *
+ * @see https://www.drupal.org/node/2571563
  */
 const LOCALE_PLURAL_DELIMITER = PluralTranslatableMarkup::DELIMITER;
 
@@ -154,6 +156,8 @@
  *
  * @deprecated in Drupal 8.0.x-dev, will be removed before Drupal 9.0.0.
  *   Use the redirect.destination service.
+ *
+ * @see https://www.drupal.org/node/2448603
  */
 function drupal_get_destination() {
   return \Drupal::destination()->getAsArray();
@@ -176,6 +180,8 @@ function drupal_get_destination() {
  *
  * @deprecated in Drupal 8.0.x-dev, will be removed before Drupal 9.0.0.
  *   Use \Drupal::service('email.validator')->isValid().
+ *
+ * @see https://www.drupal.org/node/2912661
  */
 function valid_email_address($mail) {
   return \Drupal::service('email.validator')->isValid($mail);
@@ -220,6 +226,8 @@ function valid_email_address($mail) {
  *   UrlHelper::filterBadProtocol() is functionality equivalent to check_url()
  *   apart from the fact it is protected from double escaping bugs. Note that
  *   this method no longer marks its output as safe.
+ *
+ * @see https://www.drupal.org/node/2560027
  */
 function check_url($uri) {
   return Html::escape(UrlHelper::stripDangerousProtocols($uri));
@@ -318,6 +326,8 @@ function format_size($size, $langcode = NULL) {
  *
  * @deprecated in Drupal 8.0.0, will be removed before Drupal 9.0.0.
  *   Use \Drupal::service('date.formatter')->format().
+ *
+ * @see https://www.drupal.org/node/1876852
  */
 function format_date($timestamp, $type = 'medium', $format = '', $timezone = NULL, $langcode = NULL) {
   return \Drupal::service('date.formatter')->format($timestamp, $type, $format, $timezone, $langcode);
@@ -419,6 +429,8 @@ function base_path() {
  *
  * @deprecated in Drupal 8.x, will be removed before Drupal 9.0.
  *   Use \Drupal\Core\Asset\AssetCollectionOptimizerInterface::deleteAll().
+ *
+ * @see https://www.drupal.org/node/2317841
  */
 function drupal_clear_css_cache() {
   \Drupal::service('asset.css.collection_optimizer')->deleteAll();
@@ -736,6 +748,8 @@ function drupal_attach_tabledrag(&$element, array $options) {
  *
  * @deprecated in Drupal 8.x, will be removed before Drupal 9.0.
  *   Use \Drupal\Core\Asset\AssetCollectionOptimizerInterface::deleteAll().
+ *
+ * @see https://www.drupal.org/node/2317841
  */
 function drupal_clear_js_cache() {
   \Drupal::service('asset.js.collection_optimizer')->deleteAll();
@@ -746,6 +760,7 @@ function drupal_clear_js_cache() {
  *
  * @deprecated in Drupal 8.x, will be removed before Drupal 9.0.
  *   Use \Drupal\Core\Render\Element\Link::preRenderLink().
+ * @see https://www.drupal.org/node/2912702
  */
 function drupal_pre_render_link($element) {
   return Link::preRenderLink($element);
@@ -853,6 +868,8 @@ function drupal_pre_render_links($element) {
  *   'renderer' service instead.
  *
  * @see \Drupal\Core\Render\RendererInterface::renderRoot()
+ * @see https://www.drupal.org/node/2912696
+ *
  */
 function drupal_render_root(&$elements) {
   return \Drupal::service('renderer')->renderRoot($elements);
@@ -865,6 +882,7 @@ function drupal_render_root(&$elements) {
  *   'renderer' service instead.
  *
  * @see \Drupal\Core\Render\RendererInterface::render()
+ * @see https://www.drupal.org/node/2912696
  */
 function drupal_render(&$elements, $is_recursive_call = FALSE) {
   return \Drupal::service('renderer')->render($elements, $is_recursive_call);
@@ -888,6 +906,7 @@ function drupal_render(&$elements, $is_recursive_call = FALSE) {
  *   they are available.
  *
  * @see drupal_render()
+ * @see https://www.drupal.org/node/2912757
  */
 function drupal_render_children(&$element, $children_keys = NULL) {
   if ($children_keys === NULL) {
@@ -1001,6 +1020,8 @@ function show(&$element) {
  *
  * @deprecated in Drupal 8.0.0, will be removed before Drupal 9.0.0.
  *   Use \Drupal::service('element_info')->getInfo() instead.
+ *
+ * @see https://www.drupal.org/node/2235461
  */
 function element_info($type) {
   return \Drupal::service('element_info')->getInfo($type);
@@ -1019,6 +1040,8 @@ function element_info($type) {
  *
  * @deprecated in Drupal 8.0.0, will be removed before Drupal 9.0.0.
  *   Use \Drupal::service('element_info')->getInfoProperty() instead.
+ *
+ * @see https://www.drupal.org/node/2235461
  */
 function element_info_property($type, $property_name, $default = NULL) {
   return \Drupal::service('element_info')->getInfoProperty($type, $property_name, $default);