1. Analyse fonctionnelle iconographique de la stase veineuse;Van der Molen,1960
2. Stasis spots, corona phlebectatica and other signs of venous stasis;Van der Molen;Folia Angiologica,1961
3. Die corona phlebectatica paraplantaris;Van der Molen,1982
4. Classification of venous disorders;Widmer,1978
5. Varicose veins, chronic venous insufficiency, postthrombotic syndrome;Roser-Maass;Z Hautkr,1982