| article html file updated | 5 February 2020 13:29 CET | Update | https://www.mdpi.com/1424-8247/3/2/323 |
| article html file updated | 18 September 2019 20:48 CEST | Update | N/A |
| article html file updated | 9 May 2019 08:30 CEST | Update | N/A |
| article html file updated | 19 March 2019 21:59 CET | Update | N/A |
| article html file updated | 16 June 2015 08:05 CEST | Update | N/A |
| article html file updated | 5 June 2014 09:10 CEST | Update | N/A |
| article html file updated | 5 June 2014 09:10 CEST | Update | N/A |
| article xml file uploaded | 5 June 2014 09:10 CEST | Update | https://www.mdpi.com/1424-8247/3/2/323/xml |
| article xml file uploaded | 5 June 2014 09:10 CEST | Update | N/A |
| article html file updated | 23 May 2014 14:10 CEST | Original file | N/A |
| article xml file uploaded | 23 May 2014 14:09 CEST | Original file | N/A |
