| article html file updated | 9 February 2020 00:03 CET | Update | https://www.mdpi.com/2218-1997/3/4/84 |
| article html file updated | 29 September 2019 05:05 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:37 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:23 CEST | Update | N/A |
| article html file updated | 2 January 2018 14:46 CET | Update | N/A |
| article html file updated | 14 December 2017 08:37 CET | Update | N/A |
| article xml uploaded. | 14 December 2017 08:36 CET | Update | https://www.mdpi.com/2218-1997/3/4/84/xml |
| article pdf uploaded. | 14 December 2017 08:36 CET | Updated version of record | https://www.mdpi.com/2218-1997/3/4/84/pdf |
| article html file updated | 14 December 2017 08:33 CET | Original file | N/A |
| article xml uploaded. | 14 December 2017 08:32 CET | Update | N/A |
| article xml uploaded. | 14 December 2017 08:32 CET | Original file | N/A |
| article pdf uploaded. | 14 December 2017 08:32 CET | Version of Record | https://www.mdpi.com/2218-1997/3/4/84/pdf-vor |
