@misc{10498/12253,
year = {1900},
month = {5},
url = {http://hdl.handle.net/10498/12253},
publisher = {Madrid :
   
     Imp. de M. Rojas,},
booktitle = {Tomo 47},
title = {El siglo médico
   Tomo 47 Nº2421 (20/05/1900)},
author = {},
}