diff --git a/chant.php b/chant.php
index 82aea48..abfa094 100644
--- a/chant.php
+++ b/chant.php
@@ -128,6 +128,7 @@ if(count($c_p) > 0) {
 	$cnt = 1;
 	foreach($c_p as $s) {
 		$source_label = "<i>".$sources[$s[0]]['title'].", ".$sources[$s[0]]['editor'].", ".($sources[$s[0]]['period']?$sources[$s[0]]['period']:$sources[$s[0]]['year'])."</i>".($s[1]>''?", p. ".$s[1]:'');
+		$urls = $sources[$s[0]]['urls'];
 		if (count($s) > 2) {
 			echo '<li><a href="#source_'.$cnt.'">'.$source_label."</a></li>\n";
 			$sources_img .= '<p><a name="source_'.$cnt.'">'.$source_label."</a> &nbsp;";
@@ -173,7 +174,10 @@ if(count($c_p) > 0) {
 			if($next) $sources_img .= ' <a class="prevnext" href="chant.php?id='.$next[0].'" title="Next chant in this source" >▶</a>';
 			$sources_img .= "<br />\n";
 			for($i = 0; $i < max(1, $s[3]); $i++) {
-				$sources_img .= '<img src="sources/'.$s[0].'/'.($s[2]+$i).'.png" alt="" /><br />'."\n";
+				if(is_array($urls)) $sources_img .= '<a target="_new" href="'.$urls[0].$urls[1][$i].$urls[2].'">';
+				$sources_img .= '<img src="sources/'.$s[0].'/'.($s[2]+$i).'.png" alt="" />';
+				if(is_array($urls)) $sources_img .= '</a>';
+				$sources_img .= '<br />'."\n";
 			}
 			$sources_img .= "</p>\n<hr />\n";
 		} else {
diff --git a/gregobase_structure.sql b/gregobase_structure.sql
index 027060c..0064bd4 100644
--- a/gregobase_structure.sql
+++ b/gregobase_structure.sql
@@ -1,11 +1,11 @@
 -- phpMyAdmin SQL Dump
--- version 5.1.0-rc1
+-- version 5.1.0-rc2
 -- https://www.phpmyadmin.net/
 --
 -- Hôte : localhost
--- Généré le : jeu. 11 fév. 2021 à 22:29
+-- Généré le : dim. 21 fév. 2021 à 19:10
 -- Version du serveur :  10.4.17-MariaDB-1:10.4.17+maria~xenial
--- Version de PHP : 7.4.14
+-- Version de PHP : 7.4.15
 
 SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
 START TRANSACTION;
@@ -66,7 +66,8 @@ CREATE TABLE `gregobase_chants` (
   `gabc` text COLLATE utf8_unicode_ci DEFAULT NULL,
   `gabc_verses` text COLLATE utf8_unicode_ci DEFAULT NULL,
   `tex_verses` text COLLATE utf8_unicode_ci DEFAULT NULL,
-  `remarks` text COLLATE utf8_unicode_ci DEFAULT NULL
+  `remarks` text COLLATE utf8_unicode_ci DEFAULT NULL,
+  `copyrighted` tinyint(1) NOT NULL DEFAULT 0
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
 
 -- --------------------------------------------------------
@@ -138,7 +139,8 @@ CREATE TABLE `gregobase_sources` (
   `title` varchar(256) COLLATE utf8_unicode_ci NOT NULL,
   `description` text COLLATE utf8_unicode_ci NOT NULL,
   `caption` text COLLATE utf8_unicode_ci NOT NULL,
-  `pages` mediumtext COLLATE utf8_unicode_ci DEFAULT NULL
+  `pages` mediumtext COLLATE utf8_unicode_ci DEFAULT NULL,
+  `urls` text COLLATE utf8_unicode_ci DEFAULT NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
 
 -- --------------------------------------------------------
diff --git a/source.php b/source.php
index 03c961f..ad8236a 100644
--- a/source.php
+++ b/source.php
@@ -31,6 +31,7 @@ echo "<h2>$title</h2>\n";
 if(array_key_exists('images', $_GET) && $_GET['images'] == '1') {
 	$ipp = 25;
 	if(is_array($sources[$s]['pages'])) {
+		$urls = $sources[$s]['urls'];
 		$np = count($sources[$s]['pages']);
 		$start = array_key_exists('index', $_GET) ? intval($_GET['index']*$ipp) : 0;
 		if($start > $np) $start = 0;
@@ -64,7 +65,11 @@ if(array_key_exists('images', $_GET) && $_GET['images'] == '1') {
 			echo "</ul>\n";
 			echo "</td>\n";
 			if(is_dir('./sources/'.$s)) {
-				echo '<td><img src="sources/'.$s.'/'.$i.'.png" /></td>';
+				echo '<td>';
+				if(is_array($urls)) echo '<a target="_new" href="'.$urls[0].$urls[1][$i].$urls[2].'">';
+				echo '<img src="sources/'.$s.'/'.$i.'.png" />';
+				if(is_array($urls)) echo '</a>';
+				echo '</td>';
 			}
 		}
 		echo "</table>\n";