| article html file updated | 7 February 2020 06:38 CET | Update | https://www.mdpi.com/2072-666X/7/4/57 |
| article html file updated | 21 September 2019 14:15 CEST | Update | N/A |
| article html file updated | 5 May 2019 19:58 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:42 CET | Update | N/A |
| article html file updated | 15 October 2018 04:03 CEST | Update | N/A |
| article html file updated | 29 April 2016 05:28 CEST | Update | N/A |
| article html file updated | 30 March 2016 13:57 CEST | Original file | N/A |
| article xml uploaded. | 30 March 2016 13:56 CEST | Original file | https://www.mdpi.com/2072-666X/7/4/57/xml |
| article pdf uploaded. | 30 March 2016 13:56 CEST | Version of Record | https://www.mdpi.com/2072-666X/7/4/57/pdf |
