| article html file updated | 8 February 2020 11:55 CET | Update | https://www.mdpi.com/2227-9709/4/3/23 |
| article html file updated | 26 September 2019 03:37 CEST | Update | N/A |
| article html file updated | 3 May 2019 10:31 CEST | Update | N/A |
| article html file updated | 27 March 2019 17:30 CET | Update | N/A |
| article html file updated | 27 October 2017 10:27 CEST | Update | N/A |
| article html file updated | 27 July 2017 12:31 CEST | Original file | N/A |
| article xml uploaded. | 27 July 2017 12:30 CEST | Update | https://www.mdpi.com/2227-9709/4/3/23/xml |
| article pdf uploaded. | 27 July 2017 12:29 CEST | Updated version of record | https://www.mdpi.com/2227-9709/4/3/23/pdf |
| article pdf uploaded. | 25 July 2017 11:34 CEST | Version of Record | https://www.mdpi.com/2227-9709/4/3/23/pdf-vor |
