A.M. Bykov,
A.M. Krassilchtchikov,
Yu.A. Uvarov
Ioffe Physico-Technical Institute, Politekhnicheskaya 26, St.Petersburg 194021, Russia
Using archive observations of INTEGRAL, Chandra, XMM, ROSAT, VLA, DSS, 2MASS we found possible counterparts in broad energy bands to a few hard X-ray sources: IGR J2018+4039, NGC 6334. We discuss possible nature of these sources.
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