| article html file updated | 7 February 2020 12:40 CET | Update | https://www.mdpi.com/2409-9287/1/2/133 |
| article html file updated | 5 May 2019 08:20 CEST | Update | N/A |
| article html file updated | 27 March 2019 12:07 CET | Update | N/A |
| article html file updated | 1 August 2016 12:03 CEST | Original file | N/A |
| article xml uploaded. | 1 August 2016 12:02 CEST | Original file | https://www.mdpi.com/2409-9287/1/2/133/xml |
| article pdf uploaded. | 1 August 2016 12:02 CEST | Version of Record | https://www.mdpi.com/2409-9287/1/2/133/pdf |
