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--- a/README.md
+++ b/README.md
@@ -2,23 +2,26 @@ The SHARK-VIS Simulation Code (SSC) is an IDL-based code based upon the PROPER o
 The software was developed in the framework of the SHARK-VIS instrument design, and the first release was in 2013. The results of the code were validated by using on-sky data acquired in 2015 with the SHARK forerunner experiment at LBT.  
 
 For more information about the code and the instrument please refer to: 
-Stangalini+ 2014
-Stangalini+ 2016
-Pedichini+ 2017
-Mattioli+ 2018
+
+Stangalini+ 2014;
+Stangalini+ 2016;
+Pedichini+ 2017;
+Mattioli+ 2018;
+
+
 
 The main code is composed of the following routins:
 
-SHARK_SIMULATION.pro
+- SHARK_SIMULATION.pro
 it is the main code
 
-param.dat
+- param.dat
 it is the parameter file for the set-up of the simulation
 
-pisces_on_axe_mask_2.pro
+- pisces_on_axe_mask_2.pro
 it computes the on-axis (occulted) AO PSF
 
-pisces_on_axe_phased.pro
+- pisces_on_axe_phased.pro
 it computes the off-axis PSF. Also representative of the observing mode without coronagraph.