| article html file updated | 9 February 2020 05:22 CET | Update | https://www.mdpi.com/2311-5521/3/1/12 |
| article html file updated | 30 September 2019 11:48 CEST | Update | - |
| article html file updated | 1 May 2019 21:19 CEST | Update | - |
| article html file updated | 17 April 2019 20:12 CEST | Update | - |
| article html file updated | 28 March 2019 20:35 CET | Update | - |
| article html file updated | 27 March 2018 15:27 CEST | Update | - |
| article html file updated | 2 February 2018 16:17 CET | Original file | - |
| article xml uploaded. | 2 February 2018 16:16 CET | Update | https://www.mdpi.com/2311-5521/3/1/12/xml |
| article xml uploaded. | 2 February 2018 16:16 CET | Original file | - |
| article pdf uploaded. | 2 February 2018 16:16 CET | Version of Record | https://www.mdpi.com/2311-5521/3/1/12/pdf |
