[2012-07-31]. (原始内容 (PDF)存档于2014-02-10). Nils Löfgren (1948). Studies on local anesthetics: Xylocaine: a new synthetic drug (Inaugural dissertation: Stockholm University)
Chemical Industries Atkinson, Rushman, Lee. A Synopsis of Anaesthesia. 1987. Eger, Eisenkraft, Weiskopf. The Pharmacology of Inhaled Anesthetics. 2003.