title: [Fine-structure electronic spectra of etioporphyrins at 4.2 degrees K].
mesh_terms: D000473:Alkanes; D005615:Freezing; D007536:Isomerism; D011166:Porphyrins / Q000032:analysis*; D012996:Solutions; D013050:Spectrometry, Fluorescence; D013057:Spectrum Analysis
chemical_list: D000473:Alkanes; D011166:Porphyrins; D012996:Solutions
vernacular_title: Tonkostrukturnye élektronnye spektry étioporfirinov pri 4.2 gradusakh K