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Pierce, D. T.; Celotta, R. J.; Wang, G.-C.; Unertl, W. N.; Galejs, A.; Kuyatt, C. E.; Mielczarek, S. R. (April 1980). "The GaAs spin polarized electron source". Review of Scientific Instruments. 51 (4): 478–499. Bibcode:1980RScI...51..478P. doi:10.1063/1.1136250. ISSN0034-6748.
Pierce, D. T.; Celotta, R. J.; Wang, G.-C.; Unertl, W. N.; Galejs, A.; Kuyatt, C. E.; Mielczarek, S. R. (April 1980). "The GaAs spin polarized electron source". Review of Scientific Instruments. 51 (4): 478–499. Bibcode:1980RScI...51..478P. doi:10.1063/1.1136250. ISSN0034-6748.