I. I. Rabi, 1937, Phys. Rev., 51, 652, 10.1103/PhysRev.51.652
J. Schwinger, 1937, Phys. Rev., 51, 648, 10.1103/PhysRev.51.648
Rabi, 1945, lecture notes
F. Bloch, 1940, Phys. Rev., 57, 522, 10.1103/PhysRev.57.522
L. Alvarez, 1940, Phys. Rev., 57, 111, 10.1103/PhysRev.57.111
F. Bloch, 1946, Phys. Rev., 70, 460, 10.1103/PhysRev.70.460
R. K. Wangsness, 1953, Phys. Rev., 89, 728, 10.1103/PhysRev.89.728
N. Bloembergen, Nuclear Magnetic Relaxation, 10.1142/9789812795809_others01
H. C. Torrey, 1949, Phys. Rev., 76, 1060, 10.1103/PhysRev.76.1059
E. L. Hahn, 1950, Phys. Rev., 80, 580, 10.1103/PhysRev.80.580
F. Bloch, 1940, Phys. Rev., 57, 522, 10.1103/PhysRev.57.522
Kusch, 1939, Phys. Rev., 55, 666, 10.1103/PhysRev.55.666.2
Kellogg, 1939, Phys. Rev., 55, 318, 10.1103/PhysRev.55.318
N. F. Ramsey, 1950, Phys. Rev., 78, 695, 10.1103/PhysRev.78.695
Purcell, 1946, Phys. Rev., 69, 37, 10.1103/PhysRev.69.37
Bloch, 1946, Phys. Rev., 69, 127, 10.1103/PhysRev.69.127
Bloembergen, 1948, Phys. Rev., 73, 679, 10.1103/PhysRev.73.679
E. C. Kemble, Fundamental Principles of Quantum Mechanics