| article html file updated | 9 February 2020 04:54 CET | Update | https://www.mdpi.com/2073-4352/8/2/67 |
| article html file updated | 30 September 2019 08:50 CEST | Update | - |
| article html file updated | 1 May 2019 22:22 CEST | Update | - |
| article html file updated | 17 April 2019 21:05 CEST | Update | - |
| article html file updated | 28 March 2019 19:34 CET | Update | - |
| article html file updated | 14 March 2018 09:02 CET | Update | - |
| article html file updated | 31 January 2018 09:58 CET | Update | - |
| article xml uploaded. | 31 January 2018 09:57 CET | Update | https://www.mdpi.com/2073-4352/8/2/67/xml |
| article pdf uploaded. | 31 January 2018 09:57 CET | Updated version of record | https://www.mdpi.com/2073-4352/8/2/67/pdf |
| article html file updated | 30 January 2018 15:50 CET | Original file | - |
| article xml uploaded. | 30 January 2018 15:49 CET | Original file | - |
| article pdf uploaded. | 30 January 2018 15:49 CET | Version of Record | https://www.mdpi.com/2073-4352/8/2/67/pdf-vor |
