Correction to: Search for variable stars in the northern sky: analysis of photometric time series for 3598 stars

Correction to: Astrophys Space Sci We would like to add the following sentence into the acknowledgement: Students of Horten Upper Secondary School (Horten Videregaende Skole) B. Berg, A. Hansli, V.H. Hatlo, M.B. Hjelmervik, C.T. Lavre, V. Moskvil, and V. Skui are acknowledged for taking part in observing eclipsing binary candidate TYC 2764-1997-1 star on the Nordic Optical Telescope.