| article html file updated | 9 February 2020 06:57 CET | Update | https://www.mdpi.com/2313-5778/2/1/9 |
| article html file updated | 1 May 2019 17:47 CEST | Update | N/A |
| article html file updated | 17 April 2019 17:07 CEST | Update | N/A |
| article html file updated | 28 March 2019 23:59 CET | Update | N/A |
| article html file updated | 22 February 2018 11:20 CET | Original file | N/A |
| article xml uploaded. | 22 February 2018 11:19 CET | Original file | https://www.mdpi.com/2313-5778/2/1/9/xml |
| article pdf uploaded. | 22 February 2018 11:19 CET | Updated version of record | https://www.mdpi.com/2313-5778/2/1/9/pdf |
| article pdf uploaded. | 17 February 2018 06:20 CET | Version of Record | https://www.mdpi.com/2313-5778/2/1/9/pdf-vor |
