| article html file updated | 7 February 2020 07:33 CET | Update | https://www.mdpi.com/2073-4360/8/4/155 |
| article html file updated | 5 May 2019 18:02 CEST | Update | - |
| article html file updated | 27 March 2019 02:29 CET | Update | - |
| article html file updated | 15 March 2019 12:10 CET | Update | - |
| article html file updated | 29 April 2016 10:03 CEST | Update | - |
| article html file updated | 20 April 2016 16:00 CEST | Original file | - |
| article xml uploaded. | 20 April 2016 15:59 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/155/xml |
| article pdf uploaded. | 20 April 2016 15:59 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/155/pdf |
