(2) R. Weissberger ed.: Technique of Organic Chemistry, 3 rd ed., Interscience Publ., New York, 1959, Vol. I, Part I, Chapter XIV
(2) R. Weissberger ed.: Technique of Organic Chemistry, 3 rd ed., Interscience Publ., New York, 1959, Vol. I, Part I, Chapter XIV