| article html file updated | 9 February 2020 06:30 CET | Update | https://www.mdpi.com/2311-5637/4/1/12 |
| article html file updated | 30 September 2019 18:36 CEST | Update | - |
| article html file updated | 1 May 2019 18:43 CEST | Update | - |
| article html file updated | 17 April 2019 17:59 CEST | Update | - |
| article html file updated | 28 March 2019 23:03 CET | Update | - |
| article html file updated | 27 March 2018 12:37 CEST | Update | - |
| article html file updated | 13 February 2018 09:25 CET | Original file | - |
| article xml uploaded. | 13 February 2018 09:24 CET | Update | https://www.mdpi.com/2311-5637/4/1/12/xml |
| article xml uploaded. | 13 February 2018 09:24 CET | Original file | - |
| article pdf uploaded. | 13 February 2018 09:24 CET | Version of Record | https://www.mdpi.com/2311-5637/4/1/12/pdf |
