| article html file updated | 9 February 2020 16:47 CET | Update | https://www.mdpi.com/2077-1312/6/2/52 |
| article html file updated | 3 October 2019 08:50 CEST | Update | - |
| article html file updated | 30 April 2019 21:36 CEST | Update | - |
| article html file updated | 16 April 2019 22:04 CEST | Update | - |
| article html file updated | 29 March 2019 22:49 CET | Update | - |
| article html file updated | 28 June 2018 09:06 CEST | Update | - |
| article html file updated | 8 May 2018 11:40 CEST | Original file | - |
| article pdf uploaded. | 8 May 2018 11:38 CEST | Version of Record | https://www.mdpi.com/2077-1312/6/2/52/pdf |
| article xml uploaded. | 8 May 2018 11:38 CEST | Update | https://www.mdpi.com/2077-1312/6/2/52/xml |
| article xml file uploaded | 8 May 2018 11:38 CEST | Original file | - |
