Engels
发表
Davis,
Solomon,
Mani,
1996,
Physical review. D, Particles and fields.
Shivpuri,
Mani,
Carey,
1993,
Physical review. D, Particles and fields.
Davis,
Solomon,
Mani,
1995,
Physical review letters.
Richard,
Heinrich,
Blügel,
1996,
Physical review letters.
Perić,
Engels,
Ostojic,
1997,
Journal of molecular spectroscopy.
Karsch,
Boyd,
Petersson,
1995,
Physical review letters.