| article html file updated | 5 February 2020 14:47 CET | Update | https://www.mdpi.com/1424-8247/3/6/1936 |
| article html file updated | 9 May 2019 05:47 CEST | Update | N/A |
| article html file updated | 20 March 2019 01:08 CET | Update | N/A |
| article html file updated | 16 June 2015 10:17 CEST | Update | N/A |
| article html file updated | 5 June 2014 09:07 CEST | Original file | N/A |
| article xml file uploaded | 5 June 2014 09:07 CEST | Original file | https://www.mdpi.com/1424-8247/3/6/1936/xml |
