(3) R. Weissberger (ed.): Technique of organic Chemistry, Physical Methods of Organic Chemistry. 3rd ed., Interscience Publ., New York, 1959, I, Part I, Chapter VII.
(3) R. Weissberger (ed.): Technique of organic Chemistry, Physical Methods of Organic Chemistry. 3rd ed., Interscience Publ., New York, 1959, I, Part I, Chapter VII.