| article html file updated | 7 February 2020 05:17 CET | Update | https://www.mdpi.com/2076-0825/5/1/8 |
| article html file updated | 5 May 2019 22:46 CEST | Update | - |
| article html file updated | 26 March 2019 22:15 CET | Update | - |
| article html file updated | 16 June 2016 05:01 CEST | Original file | - |
| article xml uploaded. | 8 March 2016 02:54 CET | Update | https://www.mdpi.com/2076-0825/5/1/8/xml |
| article pdf uploaded. | 4 March 2016 05:28 CET | Updated version of record | https://www.mdpi.com/2076-0825/5/1/8/pdf |
| article pdf uploaded. | 1 March 2016 11:07 CET | Version of Record | https://www.mdpi.com/2076-0825/5/1/8/pdf-vor |
