@misc{10498/11998,
year = {1891},
month = {7},
url = {http://hdl.handle.net/10498/11998},
publisher = {Madrid :
   
     Imp. de M. Rojas,},
booktitle = {Tomo 38},
title = {El siglo médico
   Tomo 38 Nº1958 (05/07/1891)},
author = {},
}