Multifrequency behaviour of the X-ray/Be system A 0535 + 26/HDE 245770 at the perioastron passage in March/April 1989
Journal article published in 1990 by
F. Giovannelli,
P. Persi,
D. de Martino 
,
C. Bartolini,
A. Guarnieri,
A. Piccioni,
M. Teoderani,
M. Burger,
E. L. van Dessel,
V. G. Kurt,
E. K. Sheffer,
L. B. Waters,
I. Gonzalez Martinez-Pais,
Y. N. Gnedin,
V. M. Larionov
and other authors.
,
C. Bartolini,
A. Guarnieri,
A. Piccioni,
M. Teoderani,
M. Burger,
E. L. van Dessel,
V. G. Kurt,
E. K. Sheffer,
L. B. Waters,
I. Gonzalez Martinez-Pais,
Y. N. Gnedin,
V. M. Larionov
and other authors.
