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Brad Forbes Radford ( Jan. 10, 1878 -1948 Nov. 13 ) Samuel Clement Bradford English philologist , chemists . January 10, 1878 Born in London , died November 14, 1948 . English bibliographies scientists and physical chemists,mercurial soccer shoes, graduated from the University of London , in 1922 was awarded the Doctor of Science degree . Bradford learned though Library and bibliography, but the love of the cause ,Adidas AdiPure TF, has been engaged in library work , he was appointed in 1925,2013 New Adidas Soccer Shoes, is located in South Kensington science librarian , until December 1937 retirement . [ 1 ] He is a British intelligence technology to improve the management of enthusiastic supporters , and to document the work contributed to the development . In 1927 he initiated the establishment of the British International Bibliographic Society , responsible for revising and quite supportive of the development of Universal Decimal Classification international directory Book Institute . In 1934 he proposed to describe the experience of literature dispersion law laws Bradford 's law, the law of workers in the literature has been widely attention, aroused heated discussion . 1947 elected to the International Federation of literature work Vice Chairman of the International Classification . Bradford writing a lot, only a treatise on the work of literature there are 35 kinds . Will be published in 1948, he had a series of related papers philology " philology " (Documentation) a book, died in the same year . [ 2 ] The text of Bradford 's law is expressed as : If the scientific journals published in accordance with the number of papers in a number of disciplines , in descending order, then you can put the face of this journal is divided into specialized disciplines in the core area , the relevant District and non- related areas. Equal number of articles of each area , the core area at this time , the relevant area, a number of journals uncorrelated region 1: n: n2 (n squared ) relationship. [ 3 ]