| article html file updated | 9 February 2020 13:09 CET | Update | https://www.mdpi.com/2226-4310/5/2/41 |
| article html file updated | 1 May 2019 04:49 CEST | Update | - |
| article html file updated | 17 April 2019 05:04 CEST | Update | - |
| article html file updated | 29 March 2019 14:08 CET | Update | - |
| article html file updated | 27 June 2018 19:31 CEST | Update | - |
| article html file updated | 10 April 2018 07:01 CEST | Original file | - |
| article xml uploaded. | 10 April 2018 06:59 CEST | Update | https://www.mdpi.com/2226-4310/5/2/41/xml |
| article pdf uploaded. | 10 April 2018 06:59 CEST | Version of Record | https://www.mdpi.com/2226-4310/5/2/41/pdf |
