| article html file updated | 6 February 2020 07:24 CET | Update | https://www.mdpi.com/2227-9059/2/1/36 |
| article html file updated | 7 May 2019 18:22 CEST | Update | N/A |
| article html file updated | 21 March 2019 12:41 CET | Update | N/A |
| article html file updated | 23 February 2017 02:21 CET | Update | N/A |
| article html file updated | 19 August 2015 21:17 CEST | Original file | N/A |
| article xml file uploaded | 8 May 2014 16:22 CEST | Update | https://www.mdpi.com/2227-9059/2/1/36/xml |
| article xml file uploaded | 8 May 2014 16:21 CEST | Update | N/A |
| article xml file uploaded | 8 May 2014 16:17 CEST | Original file | N/A |
| article pdf uploaded. | 21 February 2014 10:37 CET | Version of Record | https://www.mdpi.com/2227-9059/2/1/36/pdf |
