public function formatEditors()
 {
     // format names in editors
     $editorsFormatted = array();
     if (!$this->editors) {
         return '';
     }
     foreach ($this->editors as $editor) {
         $name = explode(' ', $editor);
         $lastName = array_pop($name);
         $editorsFormatted[] = $lastName . ' ' . StringHelper::initials(implode(' ', $name));
     }
     $editorsString = implode(', ', $editorsFormatted);
     return $editorsString;
 }
 public function formatAuthors()
 {
     // format crossRef authors
     $authors = $this->makeAuthors();
     $authorsFormatted = array();
     if (count($authors) == 0) {
         return '[Anonim]';
     }
     $i = 0;
     foreach ($authors as $author) {
         $name = $author['family'] . ' ' . StringHelper::initials($author['given']);
         $authorsFormatted[] = trim($name);
         $i++;
         if ($i == 10) {
             $authorsFormatted[9] .= ' <i>et al</i>';
             break;
         }
     }
     $authorsString = implode(', ', $authorsFormatted);
     return $authorsString;
 }