00715nam a22002411 4500 10854 BD-RjUL 20211208235028.0 140125t1963 enka b 001 0 eng (BD-RjUL)10903 DLC/ICU ICU DLC BD-RjUL eng eng 539.7214 16 HAC 1963 Hanson, Norwood Russell. 24804 The concept of the positron : a philosophical analysis / Cambridge [Eng.] : University Press, 1963. 235 p. : illus. ; 23 cm. Includes bibliographical reference and index. Positrons. 33559 ddc BK 10854 10854 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1965-11-06 Ziet 32.00 0 539.7214 HAC 1963 2014-01-25 00:00:00 C-1 2014-01-25 BK