diff --git a/Lib/Search/BookSearch.php b/Lib/Search/BookSearch.php
index d0d344b..5117e5c 100644
--- a/Lib/Search/BookSearch.php
+++ b/Lib/Search/BookSearch.php
@@ -3,14 +3,15 @@
 namespace BSR\Lib\Search;
 
 use BSR\Lib\Configuration;
+use BSR\Lib\Exception\WebException;
 
 mb_http_output('UTF-8');
 
 class BookSearch
 {
-    /** @var SolrClient  */
+    /** @var \SolrClient  */
     private $client;
-    /** @var SolrQuery  */
+    /** @var \SolrQuery  */
     private $query;
     private $queryParts = array();
 
@@ -25,8 +26,8 @@ class BookSearch
             'path' => Configuration::get('solr.path'),
         );
 
-        $this->client = new SolrClient($options);
-        $this->query = new SolrQuery();
+        $this->client = new \SolrClient($options);
+        $this->query = new \SolrQuery();
         $this->query->setQuery('*:*');
 
         $this->query->addField('*');
@@ -37,7 +38,7 @@ class BookSearch
     public function addQuery($queryText, $queryField = null, $escape = true)
     {
         if($escape) {
-            $queryText = SolrUtils::escapeQueryChars($queryText);
+            $queryText = \SolrUtils::escapeQueryChars($queryText);
         }
 
         if (strlen($queryField) > 0) {
@@ -47,7 +48,7 @@ class BookSearch
         $this->queryParts[] = $queryText;
     }
 
-    public function addSortField($field, $order = SolrQuery::ORDER_DESC)
+    public function addSortField($field, $order = \SolrQuery::ORDER_DESC)
     {
         $this->query->addSortField($field, $order);
     }
@@ -71,7 +72,7 @@ class BookSearch
 
         try {
             $results = $this->client->query($this->query)->getResponse();
-        } catch(SolrClientException $e) {
+        } catch(\SolrClientException $e) {
             throw new WebException ("SolrError", $e->getMessage(), -700);
         }