diff --git a/ktcmis/ktcmis.inc.php b/ktcmis/ktcmis.inc.php
index 7025dc3..fc4d6b8 100644
--- a/ktcmis/ktcmis.inc.php
+++ b/ktcmis/ktcmis.inc.php
@@ -259,8 +259,8 @@ class KTCMIS {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $typeID
      * @param int $depth
      * @param string $filter
@@ -301,8 +301,8 @@ class KTCMIS {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $typeID
      * @param string $filter
      * @param int $maxItems
@@ -339,9 +339,9 @@ class KTCMIS {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
-     * @param bool $returnToRoot
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
+     * @param boolean $returnToRoot
      * @param string $filter
      * @return ancestry[]
      */
@@ -373,8 +373,8 @@ class KTCMIS {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $filter
      * @return ancestry[]
      */
@@ -411,8 +411,8 @@ class KTCMIS {
      *
      * @param string $repositoryId
      * @param string $objectId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $returnVersion
      * @param string $filter
      * @return properties[]
diff --git a/ktcmis/services/CMISNavigationService.inc.php b/ktcmis/services/CMISNavigationService.inc.php
index a64dbf5..c68e491 100644
--- a/ktcmis/services/CMISNavigationService.inc.php
+++ b/ktcmis/services/CMISNavigationService.inc.php
@@ -58,8 +58,8 @@ class CMISNavigationService {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $typeId
      * @param int $depth
      * @param string $filter
@@ -101,8 +101,8 @@ class CMISNavigationService {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $typeId
      * @param string $filter
      * @param int $maxItems
@@ -142,9 +142,9 @@ class CMISNavigationService {
      *
      * @param string $repositoryId
      * @param string $folderId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
-     * @param bool $returnToRoot If TRUE, then the repository SHALL return all folder objects
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
+     * @param boolean $returnToRoot If TRUE, then the repository SHALL return all folder objects
      *                           that are ancestors of the specified folder.
      *                           If FALSE, the repository SHALL return only the parent folder of the specified folder.
      * @param string $filter
@@ -168,7 +168,6 @@ class CMISNavigationService {
 
         $ktapiFolder = $this->ktapi->get_folder_by_id($folderId);
 
-        // TODO return full ancestry on $returnToRoot == true
         if ($returnToRoot)
         {
             $folder = $ktapiFolder->get_folder();
@@ -200,11 +199,15 @@ class CMISNavigationService {
     }
 
     /**
+     * Fetches the parent(s) of the specified object
+     * Multiple parents may exist if a repository supports multi-filing
+     * It is also possible that linked documents/folders may qualify as having multiple parents
+     * as they are essentially the same object
      *
      * @param string $repositoryId
      * @param string $objectId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
      * @param string $filter
      * @return array $parents
      */
@@ -232,19 +235,6 @@ class CMISNavigationService {
                 break;
         }
 
-//        echo 'PARENT<BR><pre>'.print_r($parent, true).'</pre>';
-//
-//echo '<pre>'.print_r($ancestry, true).'</pre>';
-//        // need some info about the parent(s) in order to correctly create the hierarchy
-//        $tmpArray = array();
-//        foreach ($ancestry as $key => $ancestor)
-//        {
-//            echo '<pre>'.print_r($ancestor, true).'</pre>';
-//            $tmpArray[$key] = $this->ktapi->get_folder_by_id($ancestor);
-//        }
-//        $ancestry = $tmpArray;
-//        unset($tmpArray);
-
         $ancestry = CMISUtil::createParentObjectHierarchy($ancestry, $repository->getRepositoryURI, $this->ktapi);
 
         return $ancestry;
diff --git a/ktcmis/services/CMISObjectService.inc.php b/ktcmis/services/CMISObjectService.inc.php
index bd12a30..b41bd59 100644
--- a/ktcmis/services/CMISObjectService.inc.php
+++ b/ktcmis/services/CMISObjectService.inc.php
@@ -21,9 +21,9 @@ class CMISObjectService {
      *
      * @param string $repositoryId
      * @param string $objectId
-     * @param bool $includeAllowableActions
-     * @param bool $includeRelationships
-     * @param bool $returnVersion
+     * @param boolean $includeAllowableActions
+     * @param boolean $includeRelationships
+     * @param boolean $returnVersion
      * @param string $filter
      * @return object CMIS object properties
      */