Morris, D. J. P.; Tennant, D. A.; Grigera, S. A.; Klemke, B.; Castelnovo, C.; Moessner, R.; Czternasty, C.; Meissner, M. et al. (2009-09-03). "Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7". Science326 (5951): 411–4. doi:10.1126/science.1178868. பப்மெட்:19729617. Bibcode: 2009Sci...326..411M.
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Morris, D. J. P.; Tennant, D. A.; Grigera, S. A.; Klemke, B.; Castelnovo, C.; Moessner, R.; Czternasty, C.; Meissner, M. et al. (2009-09-03). "Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7". Science326 (5951): 411–4. doi:10.1126/science.1178868. பப்மெட்:19729617. Bibcode: 2009Sci...326..411M.
Morris, D. J. P.; Tennant, D. A.; Grigera, S. A.; Klemke, B.; Castelnovo, C.; Moessner, R.; Czternasty, C.; Meissner, M. et al. (2009-09-03). "Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7". Science326 (5951): 411–4. doi:10.1126/science.1178868. பப்மெட்:19729617. Bibcode: 2009Sci...326..411M.