| article html file updated | 8 February 2020 02:38 CET | Update | https://www.mdpi.com/2079-9292/6/2/28 |
| article html file updated | 24 September 2019 02:25 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:12 CEST | Update | N/A |
| article html file updated | 28 June 2017 13:00 CEST | Update | N/A |
| article html file updated | 24 April 2017 13:10 CEST | Update | N/A |
| article xml uploaded. | 24 April 2017 13:09 CEST | Update | https://www.mdpi.com/2079-9292/6/2/28/xml |
| article pdf uploaded. | 24 April 2017 13:09 CEST | Updated version of record | https://www.mdpi.com/2079-9292/6/2/28/pdf |
| article html file updated | 31 March 2017 12:13 CEST | Original file | N/A |
| article pdf uploaded. | 31 March 2017 12:12 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/2/28/pdf-vor |
