Bibcode
Takalo, L. O.; Sillanpää, A.; Kidger, M.; de Diego, J. A.
Referencia bibliográfica
Finnish Astronomy Days 1992 and 1993, p. 6 - 8
Fecha de publicación:
0
1993
Número de citas
1
Número de citas referidas
1
Descripción
The authors present preliminary results of optical and infrared
observations of Mk 421, during an outburst. Some of these observations
are simultaneous in both wavelength regions.