How can I cite something/add a reference

Taken from [Biblio]

"You can easily add citations by typing 

 <cite>Goldbeter-PNAS-1981 Jacob-JMB-1961 Ptashne-Genetic-Switch</cite> 
 which gives you [ 1, 2, 3].
 

To insert a list of references type

 <biblio>
 #Goldbeter-PNAS-1981 pmid=6947258
 #Jacob-JMB-1961 pmid=13718526
 #Ptashne-Genetic-Switch isbn=0879697164
 </biblio>