| article html file updated | 12 February 2020 01:26 CET | Update | https://www.mdpi.com/2227-7102/9/2/68 |
| article html file updated | 17 October 2019 08:28 CEST | Update | - |
| article html file updated | 4 July 2019 17:51 CEST | Update | - |
| article html file updated | 25 April 2019 20:12 CEST | Update | - |
| article html file updated | 11 April 2019 15:25 CEST | Update | - |
| article html file updated | 10 April 2019 10:16 CEST | Update | - |
| article html file updated | 9 April 2019 05:43 CEST | Original file | - |
| article pdf uploaded. | 9 April 2019 05:41 CEST | Updated version of record | https://www.mdpi.com/2227-7102/9/2/68/pdf |
| article xml uploaded. | 9 April 2019 05:41 CEST | Update | https://www.mdpi.com/2227-7102/9/2/68/xml |
| article xml file uploaded | 9 April 2019 05:41 CEST | Update | - |
| article pdf uploaded. | 29 March 2019 09:36 CET | Updated version of record | https://www.mdpi.com/2227-7102/9/2/68/pdf-vor |
| article pdf uploaded. | 28 March 2019 14:06 CET | Version of Record | https://www.mdpi.com/2227-7102/9/2/68/pdf-vor |
| article xml file uploaded | 28 March 2019 14:06 CET | Original file | - |
