| article html file updated | 9 February 2020 06:24 CET | Update | https://www.mdpi.com/2075-5309/8/2/30 |
| article html file updated | 30 September 2019 17:58 CEST | Update | N/A |
| article html file updated | 1 May 2019 18:56 CEST | Update | N/A |
| article html file updated | 17 April 2019 18:12 CEST | Update | N/A |
| article html file updated | 28 March 2019 22:50 CET | Update | N/A |
| article html file updated | 14 March 2018 11:19 CET | Update | N/A |
| article html file updated | 12 February 2018 09:25 CET | Original file | N/A |
| article xml uploaded. | 12 February 2018 09:24 CET | Update | https://www.mdpi.com/2075-5309/8/2/30/xml |
| article xml uploaded. | 12 February 2018 09:24 CET | Original file | N/A |
| article pdf uploaded. | 12 February 2018 09:24 CET | Version of Record | https://www.mdpi.com/2075-5309/8/2/30/pdf |
