1. ESR Spectroscopy in Polymer Research;Rånby,1977
2. Landolt–Bornstein;Forrester,1979
3. Free Nitroxyl Radicals;Rozantsev,1970
4. Organic Chemistry of Stable Free Radicals;Forrester,1968
5. Synthesis and Reactions of Stable Nitroxyl Radicals I. Synthesis