(1969). Vol. 14, № 7; Applied Physics Letters. 1969.
Cita Chicago (17th ed.)Vol. 14, № 7; Applied Physics Letters. 1969, 1969.
Cita MLA (9th ed.)Vol. 14, № 7; Applied Physics Letters. 1969, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.