И. А. Омельченко, Т. Г. Ярных, Г. И. Борщевский, and В. А. Коноваленко, “Validation of method for quantitative determination of phenobarbital in the sublingual tablet ‘Corvalol’ at "Dissolution" test”, ScienceRise: Pharmaceutical Science, no. 3 (3), pp. 32–37, Oct. 2016.