Generate a correct and concise answer for the question based on the words in the context.
--------
Question: Context : ISO 639 is a set of standards by the International Organization for Standardization that is concerned with representation of names for language and language groups. 
Question : Who set the standards for ISO 639?

Answer: International Organization for Standardization


Question: Context : Reinhard Burst (11 October 1907 -- 2 July 1998) was a highly decorated Oberstleutnant in the Wehrmacht during World War II. He was also a recipient of the Knight's Cross of the Iron Cross. 
Question : Which award did Reinhard Burst get?

Answer: Knight's Cross of the Iron Cross


Question: Context : The Buk-1 was adopted into service in 1978 following completion of state trials, while the complete Buk missile system was accepted into service in 1980 after state trials took place between 1977 and 1979. 
Question : Which was the official year for the approval of Buk missile system?

Answer:
1979