| article html file updated | 9 February 2020 23:32 CET | Update | https://www.mdpi.com/2032-6653/9/2/21 |
| article html file updated | 5 October 2019 03:04 CEST | Update | N/A |
| article html file updated | 30 April 2019 06:10 CEST | Update | N/A |
| article html file updated | 16 April 2019 01:23 CEST | Update | N/A |
| article html file updated | 30 March 2019 15:58 CET | Update | N/A |
| article html file updated | 1 August 2018 09:50 CEST | Update | N/A |
| article html file updated | 30 June 2018 12:47 CEST | Original file | N/A |
| article pdf uploaded. | 30 June 2018 12:46 CEST | Version of Record | https://www.mdpi.com/2032-6653/9/2/21/pdf |
| article xml uploaded. | 30 June 2018 12:46 CEST | Update | https://www.mdpi.com/2032-6653/9/2/21/xml |
| article xml file uploaded | 30 June 2018 12:46 CEST | Original file | N/A |
