共 13 条
[1]
ANIAUF KG, 1967, PHYS LETTERS A, V24, P20
[2]
BASOV NG, TO BE PUBLISHED
[3]
BASOV NG, 1967, JETP, V37, P339
[4]
BATOVSKIY OM, 1969, JETP LETT, V9, P341
[5]
DUETSCH TF, 1967, APPL PHYS LETTERS, V10, P234
[9]
ORAEVSKY AN, 1968, JETP, V55, P1423