| article html file updated | 6 February 2020 16:59 CET | Update | https://www.mdpi.com/2304-6775/3/2/43 |
| article html file updated | 20 September 2019 19:17 CEST | Update | - |
| article html file updated | 6 May 2019 23:06 CEST | Update | - |
| article html file updated | 25 March 2019 23:35 CET | Update | - |
| article html file updated | 20 October 2015 09:17 CEST | Update | - |
| article xml file uploaded | 20 October 2015 09:17 CEST | Original file | https://www.mdpi.com/2304-6775/3/2/43/xml |
| article html file updated | 21 August 2015 09:21 CEST | Original file | - |
| article pdf uploaded. | 25 March 2015 15:11 CET | Version of Record | https://www.mdpi.com/2304-6775/3/2/43/pdf |
