| article html file updated | 6 February 2020 04:03 CET | Update | https://www.mdpi.com/1911-8074/4/1/97 |
| article html file updated | 20 September 2019 00:33 CEST | Update | - |
| article html file updated | 8 May 2019 01:07 CEST | Update | - |
| article html file updated | 21 March 2019 03:47 CET | Update | - |
| article html file updated | 20 July 2017 08:48 CEST | Update | - |
| article html file updated | 20 July 2017 08:47 CEST | Update | - |
| article html file updated | 20 July 2017 08:46 CEST | Update | - |
| article html file updated | 20 July 2017 08:46 CEST | Update | - |
| article html file updated | 20 July 2017 08:45 CEST | Original file | - |
| article xml uploaded. | 20 July 2017 08:44 CEST | Update | https://www.mdpi.com/1911-8074/4/1/97/xml |
| article pdf uploaded. | 28 August 2013 18:25 CEST | Version of Record | https://www.mdpi.com/1911-8074/4/1/97/pdf |
