Spectrophotometric support of spectral observations with the telescope   BTA
  We report on the development of the medium-resolution spectrophotometer to accompany (in real time) spectral observations performed with the high resolution spectrographs on the 6-m telescope BTA. 
V. Panchuk, Yu. Verich, V. Klochkova, M. Yushkin, and G. Yakopov
astro-ph.SR astro-ph.IM