User-agent: Yandex
Allow: /index.php?magaz=info&mag_prodid=15887
Allow: /index.php?magaz=info&mag_prodid=23851
Disallow: /

User-agent: Googlebot
Allow: /index.php?magaz=info&mag_prodid=15887
Allow: /index.php?magaz=info&mag_prodid=16293