| article html file updated | 8 February 2020 00:39 CET | Update | https://www.mdpi.com/2079-9292/6/1/18 |
| article html file updated | 23 September 2019 15:06 CEST | Update | - |
| article html file updated | 4 May 2019 08:32 CEST | Update | - |
| article html file updated | 29 March 2017 10:18 CEST | Update | - |
| article html file updated | 6 March 2017 04:18 CET | Original file | - |
| article xml uploaded. | 6 March 2017 04:17 CET | Update | https://www.mdpi.com/2079-9292/6/1/18/xml |
| article pdf uploaded. | 6 March 2017 04:17 CET | Updated version of record | https://www.mdpi.com/2079-9292/6/1/18/pdf |
| article pdf uploaded. | 2 March 2017 13:18 CET | Version of Record | https://www.mdpi.com/2079-9292/6/1/18/pdf-vor |
