| article html file updated | 7 February 2020 13:10 CET | Update | https://www.mdpi.com/2309-608X/2/3/23 |
| article html file updated | 21 September 2019 22:49 CEST | Update | - |
| article html file updated | 5 May 2019 07:23 CEST | Update | - |
| article html file updated | 27 March 2019 13:21 CET | Update | - |
| article html file updated | 11 December 2018 09:14 CET | Update | - |
| article html file updated | 11 August 2016 12:35 CEST | Update | - |
| article html file updated | 11 August 2016 09:14 CEST | Original file | - |
| article xml uploaded. | 11 August 2016 09:13 CEST | Original file | https://www.mdpi.com/2309-608X/2/3/23/xml |
| article pdf uploaded. | 11 August 2016 09:13 CEST | Version of Record | https://www.mdpi.com/2309-608X/2/3/23/pdf |
