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MASS SPECTROGRAPHIC MASS ASSIGNMENT OF RADIOACTIVE ISOTOPES
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ASSIGNMENT OF MASS TO 46-HR SAMARIUM AND 9.2-HR EUROPIUM BY A MASS SPECTROGRAPH
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THE ISOTOPIC CONSTITUTION OF EUROPIUM, GADOLINIUM, AND TERBIUM
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ARTIFICIAL ACTIVITIES PRODUCED IN EUROPIUM AND HOLMIUM BY SLOW NEUTRON BOMBARDMENT
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