| article html file updated | 9 February 2020 18:56 CET | Update | https://www.mdpi.com/2077-1312/6/2/60 |
| article html file updated | 3 October 2019 22:38 CEST | Update | - |
| article html file updated | 30 April 2019 16:53 CEST | Update | - |
| article html file updated | 16 April 2019 17:20 CEST | Update | - |
| article html file updated | 30 March 2019 04:23 CET | Update | - |
| article html file updated | 28 June 2018 09:08 CEST | Update | - |
| article html file updated | 24 May 2018 15:50 CEST | Original file | - |
| article pdf uploaded. | 24 May 2018 15:48 CEST | Version of Record | https://www.mdpi.com/2077-1312/6/2/60/pdf |
| article xml uploaded. | 24 May 2018 15:48 CEST | Update | https://www.mdpi.com/2077-1312/6/2/60/xml |
| article xml file uploaded | 24 May 2018 15:48 CEST | Original file | - |
