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MARC 主机 00000nam  2200000 a 4500 
001    bU751025 
008    940204s1975    bu a     b    000   eng   
010    78302680 
015    Bu75-1025 
050  4 QC173.585|b.K34 
082 04 530.1/1 
100 1  Kalitsin, Nikola St. 
245 10 Multitemporal theory of relativity /|cNikola S. Kalitzin. 
260    Sofia :|bPublishing House of the Bulgarian Academy of 
       Sciences,|c1975. 
300    123 p :|bdiagr ;|c20 cm. 
500    2.00 lv. 
504    Includes bibliographies. 
650  0 Relativity (Physics)