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NON-APPEARANCE OF CHARGE 2/3 QUARKS AT GREAT DEPTHS UNDERGROUND
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[2]
BARTON JC, 1965, P INT C COSM RAYS, P1006
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AN UNSUCCESSFUL SEARCH FOR FRACTIONALLY CHARGED PARTICLES WITH MASS LESS-THAN-OR-EQUAL-TO 2.2 GEV
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PHYSICS LETTERS,
1964, 9 (02)
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[4]
BJORNBOE J, 1966, PROG THEOR PHYS S, V37, P192
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BLUM W, 1964, PHYS REV LETT, V13, P353
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CHATTERJEE BK, 1965, P INT C COSMIC RAYS, P805
[8]
COCCONI G, 1961, HANDBUCH PHYSIK, V46
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DAMGARD G, 1965, P INT C COSMIC RAYS, P808
[10]
COSMIC-RAY SEARCH FOR FRACTIONALLY CHARGED PARTICLES
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PHYSICAL REVIEW,
1965, 140 (2B)
:B458-&