| article html file updated | 7 February 2020 23:07 CET | Update | https://www.mdpi.com/2071-1050/9/2/252 |
| article html file updated | 23 September 2019 06:32 CEST | Update | - |
| article html file updated | 4 May 2019 11:46 CEST | Update | - |
| article html file updated | 1 March 2017 10:35 CET | Update | - |
| article html file updated | 15 February 2017 12:34 CET | Update | - |
| article xml uploaded. | 15 February 2017 12:33 CET | Update | https://www.mdpi.com/2071-1050/9/2/252/xml |
| article xml uploaded. | 15 February 2017 12:33 CET | Update | - |
| article pdf uploaded. | 15 February 2017 12:33 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/2/252/pdf |
| article html file updated | 15 February 2017 02:35 CET | Original file | - |
| article xml uploaded. | 15 February 2017 02:34 CET | Original file | - |
| article pdf uploaded. | 15 February 2017 02:34 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/2/252/pdf-vor |
| article pdf uploaded. | 10 February 2017 16:01 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/252/pdf-vor |
