wiki.techinc.nl/languages/classes/LanguageSr_el.php

<?php

/**
 * Serbian (latin script)
 *
 * @ingroup Language
 */
class LanguageSr_el extends Language {

	/**
	 * @param $count int
	 * @param $forms array
	 * @return string
	 */
	function convertPlural( $count, $forms ) {
		if ( !count( $forms ) ) { return ''; }
		$forms = $this->preConvertPlural( $forms, 3 );

		if ( $count > 10 && floor( ( $count % 100 ) / 10 ) == 1 ) {
			return $forms[2];
		} else {
			switch ( $count % 10 ) {
				case 1:  return $forms[0];
				case 2:
				case 3:
				case 4:  return $forms[1];
				default: return $forms[2];
			}
		}
	}
}