| article html file updated | 9 February 2020 19:41 CET | Update | https://www.mdpi.com/2079-6439/6/2/34 |
| article html file updated | 4 October 2019 03:04 CEST | Update | N/A |
| article html file updated | 30 April 2019 15:09 CEST | Update | N/A |
| article html file updated | 16 April 2019 15:42 CEST | Update | N/A |
| article html file updated | 30 March 2019 06:11 CET | Update | N/A |
| article html file updated | 28 June 2018 03:28 CEST | Update | N/A |
| article html file updated | 31 May 2018 11:02 CEST | Original file | N/A |
| article pdf uploaded. | 31 May 2018 11:00 CEST | Version of Record | https://www.mdpi.com/2079-6439/6/2/34/pdf |
| article xml uploaded. | 31 May 2018 11:00 CEST | Update | https://www.mdpi.com/2079-6439/6/2/34/xml |
| article xml file uploaded | 31 May 2018 11:00 CEST | Original file | N/A |
