| article html file updated | 7 February 2020 06:49 CET | Update | https://www.mdpi.com/2072-6643/8/4/172 |
| article html file updated | 21 September 2019 14:29 CEST | Update | N/A |
| article html file updated | 5 May 2019 19:35 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:01 CET | Update | N/A |
| article html file updated | 28 April 2016 09:19 CEST | Update | N/A |
| article html file updated | 5 April 2016 10:40 CEST | Original file | N/A |
| article xml uploaded. | 5 April 2016 10:39 CEST | Original file | https://www.mdpi.com/2072-6643/8/4/172/xml |
| article pdf uploaded. | 5 April 2016 10:39 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/4/172/pdf |
