| article html file updated | 12 February 2020 07:33 CET | Update | https://www.mdpi.com/2227-9717/7/4/234 |
| article html file updated | 18 October 2019 22:40 CEST | Update | N/A |
| article html file updated | 28 April 2019 04:34 CEST | Update | N/A |
| article html file updated | 26 April 2019 04:59 CEST | Original file | N/A |
| article pdf uploaded. | 26 April 2019 04:58 CEST | Updated version of record | https://www.mdpi.com/2227-9717/7/4/234/pdf |
| article xml uploaded. | 26 April 2019 04:58 CEST | Update | https://www.mdpi.com/2227-9717/7/4/234/xml |
| article xml file uploaded | 26 April 2019 04:58 CEST | Update | N/A |
| article pdf uploaded. | 24 April 2019 15:37 CEST | Version of Record | https://www.mdpi.com/2227-9717/7/4/234/pdf-vor |
| article xml file uploaded | 24 April 2019 15:37 CEST | Original file | N/A |
