[Simultaneous calculation of the secondary structure and one of the reference spectra according to the protein circular dichroism].

The method of simultaneous calculation of protein structure and one of the references from the set of CD-spectra of this protein under different conditions suggested by Markussen and Volund have been considered. It has been shown that the organization of this problemin [6] contains an error and ther is no simple solution. Possible methods for reducing indeterminacy of this problem have been discussed.