diff --git a/htdocs/compta/bank/class/account.class.php b/htdocs/compta/bank/class/account.class.php
index 46c3e168a1b..f8ab6517f92 100644
--- a/htdocs/compta/bank/class/account.class.php
+++ b/htdocs/compta/bank/class/account.class.php
@@ -40,12 +40,12 @@ class Account extends CommonObject
 	 * @var string ID to identify managed object
 	 */
 	public $element = 'bank_account';
-	
+
 	/**
 	 * @var string Name of table without prefix where object is stored
 	 */
 	public $table_element = 'bank_account';
-	
+
 	public $picto = 'account';
 
 	/**
@@ -1645,30 +1645,34 @@ class AccountLine extends CommonObject
 	 * @var string Error code (or message)
 	 */
 	public $error='';
-	
+
 	/**
      * @var DoliDB Database handler.
      */
     public $db;
-    
+
 	/**
 	 * @var string ID to identify managed object
 	 */
 	public $element='bank';
-	
+
 	/**
 	 * @var string Name of table without prefix where object is stored
 	 */
 	public $table_element='bank';
-	
+
 	var $picto = 'generic';
 
 	/**
 	 * @var int ID
 	 */
 	public $id;
-	
-	var $ref;
+
+	/**
+	 * @var string Ref
+	 */
+	public $ref;
+
 	var $datec;
 	var $dateo;
 
@@ -1677,12 +1681,12 @@ class AccountLine extends CommonObject
 	 */
 	var $datev;
 	var $amount;
-	
+
 	/**
      * @var string proper name for given parameter
      */
     public $label;
-    
+
 	var $note;
 	var $fk_user_author;
 	var $fk_user_rappro;
diff --git a/htdocs/compta/bank/class/paymentvarious.class.php b/htdocs/compta/bank/class/paymentvarious.class.php
index 90ec1558981..6b1d35cc910 100644
--- a/htdocs/compta/bank/class/paymentvarious.class.php
+++ b/htdocs/compta/bank/class/paymentvarious.class.php
@@ -34,20 +34,24 @@ class PaymentVarious extends CommonObject
 	 * @var string ID to identify managed object
 	 */
 	public $element='variouspayment';
-	
+
 	/**
 	 * @var string Name of table without prefix where object is stored
 	 */
 	public $table_element='payment_various';
-	
+
 	public $picto = 'bill';
 
 	/**
 	 * @var int ID
 	 */
 	public $id;
-	
-	var $ref;
+
+	/**
+	 * @var string Ref
+	 */
+	public $ref;
+
 	var $tms;
 	var $datep;
 	var $datev;
@@ -55,12 +59,12 @@ class PaymentVarious extends CommonObject
 	var $amount;
 	var $type_payment;
 	var $num_payment;
-	
+
 	/**
      * @var string proper name for given parameter
      */
     public $label;
-    
+
 	var $accountancy_code;
 	var $fk_project;
 	var $fk_bank;
diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 537d18245fd..26a32fe8468 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -45,22 +45,22 @@ class Contrat extends CommonObject
 	 * @var string ID to identify managed object
 	 */
 	public $element='contrat';
-	
+
 	/**
 	 * @var string Name of table without prefix where object is stored
 	 */
 	public $table_element='contrat';
-	
+
 	public $table_element_line='contratdet';
 	public $fk_element='fk_contrat';
     public $picto='contract';
-    
+
     /**
      * 0=No test on entity, 1=Test with field entity, 2=Test with link by societe
      * @var int
      */
     public $ismultientitymanaged = 1;
-    
+
     /**
      * 0=Default, 1=View may be restricted to sales representative only if no permission to see all or to company of external user if external user
      * @var integer
@@ -2465,7 +2465,7 @@ class ContratLigne extends CommonObjectLine
 	 * @var string ID to identify managed object
 	 */
 	public $element='contratdet';
-    
+
     /**
 	 * @var string Name of table without prefix where object is stored
 	 */
@@ -2475,8 +2475,12 @@ class ContratLigne extends CommonObjectLine
 	 * @var int ID
 	 */
 	public $id;
-	
-	var $ref;
+
+	/**
+	 * @var string Ref
+	 */
+	public $ref;
+
 	var $tms;
 
 	var $fk_contrat;
diff --git a/htdocs/core/class/notify.class.php b/htdocs/core/class/notify.class.php
index f5c0020bac1..bcab80dc19f 100644
--- a/htdocs/core/class/notify.class.php
+++ b/htdocs/core/class/notify.class.php
@@ -34,12 +34,12 @@ class Notify
 	 * @var int ID
 	 */
 	public $id;
-	
+
 	/**
      * @var DoliDB Database handler.
      */
     public $db;
-	
+
 	/**
 	 * @var string Error code (or message)
 	 */
@@ -51,7 +51,12 @@ class Notify
 	public $errors = array();
 
 	var $author;
-	var $ref;
+
+	/**
+	 * @var string Ref
+	 */
+	public $ref;
+
 	var $date;
 	var $duree;
 	var $note;