| article html file updated | 9 February 2020 11:34 CET | Update | https://www.mdpi.com/2409-9287/3/2/8 |
| article html file updated | 1 May 2019 08:03 CEST | Update | N/A |
| article html file updated | 17 April 2019 08:00 CEST | Update | N/A |
| article html file updated | 29 March 2019 10:30 CET | Update | N/A |
| article html file updated | 28 March 2018 09:32 CEST | Original file | N/A |
| article xml uploaded. | 28 March 2018 09:30 CEST | Original file | https://www.mdpi.com/2409-9287/3/2/8/xml |
| article pdf uploaded. | 28 March 2018 09:30 CEST | Version of Record | https://www.mdpi.com/2409-9287/3/2/8/pdf |
