S. Helbing
发表
L. Roselli,
R. Sorrentino,
F. Alimenti,
1999,
IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010).
Roberto Sorrentino,
Luca Roselli,
F. Alimenti,
2001
.
L. Roselli,
F. Alimenti,
R. Sorrentino,
1999,
1999 29th European Microwave Conference.
L. Roselli,
F. Alimenti,
R. Sorrentino,
2000,
IEEE Microwave and Guided Wave Letters.