| article html file updated | 9 February 2020 19:29 CET | Update | https://www.mdpi.com/2077-1312/6/2/61 |
| article html file updated | 4 October 2019 01:51 CEST | Update | - |
| article html file updated | 30 April 2019 15:38 CEST | Update | - |
| article html file updated | 16 April 2019 16:08 CEST | Update | - |
| article html file updated | 30 March 2019 05:42 CET | Update | - |
| article html file updated | 28 June 2018 09:09 CEST | Update | - |
| article html file updated | 29 May 2018 16:43 CEST | Original file | - |
| article pdf uploaded. | 29 May 2018 16:42 CEST | Version of Record | https://www.mdpi.com/2077-1312/6/2/61/pdf |
| article xml uploaded. | 29 May 2018 16:42 CEST | Update | https://www.mdpi.com/2077-1312/6/2/61/xml |
| article xml file uploaded | 29 May 2018 16:42 CEST | Original file | - |
