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This method , published in the 1970s ( several publications of this method are found in 1973 , 1975 and 1979 ) is named after him ( Sarma method ) and it is a special case of a Limit Equilibrium method of geotechnical analysis .
 Sarma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sarma