TY - JOUR A1 - González, María Magdalena A1 - Dorner, Daniela A1 - Bretz, Thomas A1 - García-González, José Andrés T1 - Unbiased long-term monitoring at TeV energies T2 - Galaxies N2 - For the understanding of the variable, transient and non-thermal universe, unbiased long-term monitoring is crucial. To constrain the emission mechanisms at the highest energies, it is important to characterize the very high energy emission and its correlation with observations at other wavelengths. At very high energies, only a limited number of instruments is available. This article reviews the current status of monitoring of the extra-galactic sky at TeV energies. KW - monitoring KW - very high energies (VHE) KW - TeV energies Y1 - 2019 UR - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/19738 UR - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-197389 SN - 2075-4434 VL - 7 IS - 2 ER -