1. Research on the effect of cocaine on the spinal cord;Bier;Deutsch Zeitung Chirurgie,1899
2. The injection of medications in the epidural space via the sacrococcygeal route;Sicard;CR Soc Biol (Paris),1901
3. A new route of subarachnoid injection. Method of epidural injection via the sacral route: applications to man;Cathelin;CR Soc Biol (Paris),1901
4. A study of spinal anaesthesia in children and infants;Tyrrell-Gray;Lancet,1909
5. A further study of spinal anaesthesia in children and infants;Tyrrell-Gray;Lancet,1910