TREATY ESTABLISHING THE EUROPEAN ECONOMIC COMMUNITY, PART THREE - POLICY OF THE COMMUNITY, TITLE I - COMMON RULES, CHAPTER 1: RULES ON COMPETITION, SECTION 1: RULES APPLYING TO UNDERTAKINGS, ARTICLE 87
TREATY ESTABLISHING THE EUROPEAN ECONOMIC COMMUNITY, PART FIVE - INSTITUTIONS OF THE COMMUNITY, TITLE I - PROVISIONS GOVERNING THE INSTITUTIONS, CHAPTER 1: THE INSTITUTIONS, SECTION 3: THE COMMISSION, ARTICLE 155