++++ 1.Measures adopted by the institutions - Individual decision - "Notification" - Meaning 2.Competition - Administrative procedure - Request for information - Powers of the Commission ( Council Regulation No 17, Arts 11 and 14 ) 3.Community law - Principles - Rights of the defence - Observance in administrative procedures - Competition - Decision requesting information addressed to an undertaking - Right to refuse to provide an answer implying recognition of the existence of an infringement ( Council Regulation No 17, Art . 11 )