65823
He wrote three papers , two with Anatol Rapoport , in 1950 – 52 , that are regarded as the earliest statistical analysis of networks .
 Anatol Rapoport
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:
 Anatol Rapoport