| article html file updated | 7 February 2020 02:33 CET | Update | https://www.mdpi.com/1660-4601/13/1/23 |
| article html file updated | 21 September 2019 08:22 CEST | Update | - |
| article html file updated | 6 May 2019 04:19 CEST | Update | - |
| article html file updated | 26 March 2019 16:59 CET | Original file | - |
| article xml uploaded. | 23 December 2015 13:30 CET | Update | https://www.mdpi.com/1660-4601/13/1/23/xml |
| article pdf uploaded. | 23 December 2015 13:30 CET | Updated version of record | https://www.mdpi.com/1660-4601/13/1/23/pdf |
| article xml uploaded. | 23 December 2015 13:30 CET | Update | - |
| article pdf uploaded. | 22 December 2015 17:06 CET | Version of Record | - |
| article xml uploaded. | 22 December 2015 17:06 CET | Original file | - |
