| article html file updated | 9 February 2020 08:58 CET | Update | https://www.mdpi.com/1996-1073/11/3/581 |
| article html file updated | 1 October 2019 08:44 CEST | Update | N/A |
| article html file updated | 1 May 2019 13:34 CEST | Update | N/A |
| article html file updated | 17 April 2019 13:13 CEST | Update | N/A |
| article html file updated | 29 March 2019 04:41 CET | Update | N/A |
| article html file updated | 27 March 2018 06:00 CEST | Update | N/A |
| article html file updated | 7 March 2018 17:54 CET | Original file | N/A |
| article xml uploaded. | 7 March 2018 17:52 CET | Original file | https://www.mdpi.com/1996-1073/11/3/581/xml |
| article pdf uploaded. | 7 March 2018 17:52 CET | Version of Record | https://www.mdpi.com/1996-1073/11/3/581/pdf |
