共 10 条
[5]
HELLINGER E, 1907, THESIS GOTTINGEN
[7]
Titchmarsh E.C., 1946, EIGENFUNCTION EXPANS
[9]
Weyl H., 1910, GOTTINGER NACHRICHTE, P442
[10]
STABILITY AND SPECTRUM IN THE WAVE MECHANICS OF LATTICES
[J].
PHYSICAL REVIEW,
1947, 72 (01)
:81-82