| article html file updated | 8 February 2020 12:35 CET | Update | https://www.mdpi.com/2073-8994/9/8/139 |
| article html file updated | 26 September 2019 07:33 CEST | Update | N/A |
| article html file updated | 3 May 2019 08:52 CEST | Update | N/A |
| article html file updated | 27 March 2019 18:51 CET | Update | N/A |
| article html file updated | 30 August 2017 09:50 CEST | Update | N/A |
| article html file updated | 2 August 2017 11:14 CEST | Original file | N/A |
| article xml uploaded. | 2 August 2017 11:13 CEST | Original file | https://www.mdpi.com/2073-8994/9/8/139/xml |
| article pdf uploaded. | 2 August 2017 11:13 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/8/139/pdf |
