« [https://books.google.fr/books?id=vbSvCwAAQBAJ&pg=PA146&lpg=PA146&dq=klm+tnt+xp&source=bl&ots=CnZPeoY9Si&sig=2TL72Wp_ba5v_eDldtP-Af_avVA&hl=fr&
En%201989,%20la%20poste%20néerlandaise%20est%20privatisée%20et%20devient%20PTT%20Nederland.%20Les%20activités%20postales%20sont%20renommées%20PTT%20Post.%20En%201994,%20PTT%20Nederland%20devient%20Royale%20PTT%20Nederland%20(KPN%20pour%20Koninklijke%20PTT%20Nederland),%20société%20cotée%20à%20Amsterdam.sa=X&ved=0ahUKEwi10pH6l5DSAhWKjiwKHZ2DAVUQ6AEIIjAB#v=onepage&q=klm%20tnt%20xp&f=false Flying the Flag: European Commercial Air Transport since 1945] »
