10659
In his 1936 paper on analytic measure theory , he used the Haar theorem in the solution of Hilbert 's fifth problem in the case of compact groups .
 Haar, Hilbert
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Haar, Hilbert