(1980). Vol. 21, № 12; Physical Review. Ser. D. 1980.
Cita Chicago (17th ed.)Vol. 21, № 12; Physical Review. Ser. D. 1980, 1980.
Cita MLA (9th ed.)Vol. 21, № 12; Physical Review. Ser. D. 1980, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.