Exceptionally high brightness of PG 1553+113 in the optical and radio range
Published in 2023 by
D. Kuberek,
L. Bertsch,
M. Hensel,
M. Kardasch,
E. von Raesfeld,
R. Steineke,
D. Reinhart,
N. Zottmann,
M. Feige,
C. Lorey,
D. Kirchner,
F. Roesch 
,
J. Hessdoerfer ,
P. Weber,
K. Mannheim
and other authors.
,
J. Hessdoerfer ,
P. Weber,
K. Mannheim
and other authors.
