| article html file updated | 9 February 2020 18:50 CET | Update | https://www.mdpi.com/2077-1312/6/2/59 |
| article html file updated | 3 October 2019 21:59 CEST | Update | - |
| article html file updated | 30 April 2019 17:08 CEST | Update | - |
| article html file updated | 16 April 2019 17:35 CEST | Update | - |
| article html file updated | 30 March 2019 04:06 CET | Update | - |
| article html file updated | 28 June 2018 09:08 CEST | Update | - |
| article html file updated | 24 May 2018 08:33 CEST | Original file | - |
| article pdf uploaded. | 24 May 2018 08:32 CEST | Version of Record | https://www.mdpi.com/2077-1312/6/2/59/pdf |
| article xml uploaded. | 24 May 2018 08:32 CEST | Update | https://www.mdpi.com/2077-1312/6/2/59/xml |
| article xml file uploaded | 24 May 2018 08:32 CEST | Original file | - |
