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Published: Hà-nôi, Nhà-xuât-ban-Giáo-dục, 1994
   
6
   
7
Published: Archangel'sk, Severo-Zapadnoe Kn. Izdat., 1984 -
   
8
   
9
Published: Lille, Service de Reproduction des Thèses, Université de Lille III, 1973
   
10
   
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14
   
15
Published: Liége, Fac. de Philosophie et Lettres, 1945
   
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