remove empty citep

VOHE-Note.tex

@@ -305,7 +305,7 @@ \subsubsection{Multiple Imaging Atmospheric Cherenkov Telescopes extraction exam
 
 This was proposed in \citep{2019A&A...625A..10N} by a group of HE astronomers of various HE facilities.
 %This work used event-list data products as an input from different facilities (MAGIC, H.E.S.S., FACT, VERITAS, etc...).  data for the Crab Nebula computed from the Maximum likelihood functions of each event depending on the IRFs properties.
-In this work, the authors implemented a prototypical data format (GADF) for a small set of MAGIC, VERITAS, FACT, and H.E.S.S. Crab nebula observations, and they analyzed them with the open-source gammapy software package \citep{}. By combining data from Fermi-LAT, and from four of the currently operating imaging atmospheric Cherenkov telescopes, they produced a joint maximum likelihood fit of the Crab nebula spectrum.
+In this work, the authors implemented a prototypical data format (GADF) for a small set of MAGIC, VERITAS, FACT, and H.E.S.S. Crab nebula observations, and they analyzed them with the open-source gammapy software package. By combining data from Fermi-LAT, and from four of the currently operating imaging atmospheric Cherenkov telescopes, they produced a joint maximum likelihood fit of the Crab nebula spectrum.
 
 Such a work has been more recently extended with the HAWC data \citep{2022A&A...667A..36A}, and included neutrino data in a common CTA and KM3NeT source search \citep{unbehaun2023prospects}.