| article html file updated | 9 February 2020 11:19 CET | Update | https://www.mdpi.com/2076-0752/7/2/12 |
| article html file updated | 1 May 2019 08:37 CEST | Update | - |
| article html file updated | 17 April 2019 08:31 CEST | Update | - |
| article html file updated | 29 March 2019 09:55 CET | Update | - |
| article html file updated | 27 June 2018 19:42 CEST | Update | - |
| article html file updated | 26 March 2018 17:28 CEST | Original file | - |
| article xml uploaded. | 26 March 2018 15:22 CEST | Update | https://www.mdpi.com/2076-0752/7/2/12/xml |
| article pdf uploaded. | 26 March 2018 15:22 CEST | Version of Record | https://www.mdpi.com/2076-0752/7/2/12/pdf |
