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Proponents of the genetic approach ( Vladimir Bazarov , Vladimir Groman , Nikolai Kondratiev ) believed that the plan should be based on objective regularities of economic development , identified as a result of an analysis of existing trends .
 Vladimir Bazarov, Vladimir Groman, Nikolai Kondratiev
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Vladimir Bazarov, Vladimir Groman, Nikolai Kondratiev