| article html file updated | 6 February 2020 18:33 CET | Update | https://www.mdpi.com/2079-6412/5/2/172 |
| article html file updated | 6 May 2019 20:13 CEST | Update | - |
| article html file updated | 26 March 2019 02:26 CET | Update | - |
| article html file updated | 19 May 2016 11:43 CEST | Update | - |
| article html file updated | 21 August 2015 12:01 CEST | Update | - |
| article html file updated | 30 June 2015 03:11 CEST | Update | - |
| article xml file uploaded | 30 June 2015 03:11 CEST | Update | https://www.mdpi.com/2079-6412/5/2/172/xml |
| article html file updated | 27 May 2015 12:39 CEST | Original file | - |
| article xml file uploaded | 27 May 2015 12:39 CEST | Original file | - |
| article pdf uploaded. | 22 May 2015 10:39 CEST | Updated version of record | https://www.mdpi.com/2079-6412/5/2/172/pdf |
| article pdf uploaded. | 12 May 2015 15:33 CEST | Version of Record | https://www.mdpi.com/2079-6412/5/2/172/pdf-vor |
