Gammelgård, Søren. 1961. “Guide to Legislation on Restrictive Business Practices: Europe and North America. Texts, Explanatory Notes, Decisions, Bibliography. (Vol. 111, 263 Sider —EPA OEEC. Paris 1906 — 35 sh)”. Nationaløkonomisk Tidsskrift 99 (januar). https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/60998.