| article html file updated | 8 February 2020 02:18 CET | Update | https://www.mdpi.com/2079-8954/5/2/28 |
| article html file updated | 24 September 2019 00:30 CEST | Update | - |
| article html file updated | 4 May 2019 04:56 CEST | Update | - |
| article html file updated | 29 June 2017 11:52 CEST | Update | - |
| article html file updated | 29 March 2017 06:11 CEST | Original file | - |
| article xml uploaded. | 29 March 2017 06:09 CEST | Original file | https://www.mdpi.com/2079-8954/5/2/28/xml |
| article pdf uploaded. | 29 March 2017 06:09 CEST | Updated version of record | https://www.mdpi.com/2079-8954/5/2/28/pdf |
| article pdf uploaded. | 26 March 2017 11:55 CEST | Version of Record | https://www.mdpi.com/2079-8954/5/2/28/pdf-vor |
