| article html file updated | 9 February 2020 16:37 CET | Update | https://www.mdpi.com/2304-8158/7/5/74 |
| article html file updated | 3 October 2019 07:48 CEST | Update | - |
| article html file updated | 30 April 2019 21:56 CEST | Update | - |
| article html file updated | 16 April 2019 22:25 CEST | Update | - |
| article html file updated | 29 March 2019 22:26 CET | Update | - |
| article html file updated | 30 May 2018 10:50 CEST | Update | - |
| article html file updated | 7 May 2018 10:44 CEST | Original file | - |
| article pdf uploaded. | 7 May 2018 10:43 CEST | Version of Record | https://www.mdpi.com/2304-8158/7/5/74/pdf |
| article xml uploaded. | 7 May 2018 10:43 CEST | Update | https://www.mdpi.com/2304-8158/7/5/74/xml |
| article xml file uploaded | 7 May 2018 10:43 CEST | Original file | - |
