| article html file updated | 8 February 2020 12:23 CET | Update | https://www.mdpi.com/2227-9067/4/8/64 |
| article html file updated | 26 September 2019 06:23 CEST | Update | N/A |
| article html file updated | 3 May 2019 09:17 CEST | Update | N/A |
| article html file updated | 27 March 2019 18:26 CET | Update | N/A |
| article html file updated | 1 September 2017 08:26 CEST | Update | N/A |
| article html file updated | 1 August 2017 13:45 CEST | Update | N/A |
| article xml uploaded. | 1 August 2017 13:44 CEST | Update | https://www.mdpi.com/2227-9067/4/8/64/xml |
| article pdf uploaded. | 1 August 2017 13:44 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/8/64/pdf |
| article html file updated | 1 August 2017 04:05 CEST | Original file | N/A |
| article pdf uploaded. | 1 August 2017 04:04 CEST | Updated version of record | https://www.mdpi.com/2227-9067/4/8/64/pdf-vor |
| article pdf uploaded. | 31 July 2017 11:46 CEST | Version of Record | https://www.mdpi.com/2227-9067/4/8/64/pdf-vor |
