Compression of Solar Spectroscopic Observations: a Case Study of Mg II k Spectral Line Profiles Observed by NASA's IRIS Satellite. - Viacheslav M. Sadykov; Irina N. Kitiashvili; Alberto Sainz Dalda; Vincent Oria; Alexander G. Kosovichev; Egor Illarionov (CBMI, 2021)