| article html file updated | 8 February 2020 07:03 CET | Update | https://www.mdpi.com/2076-3387/7/2/18 |
| article html file updated | 25 September 2019 02:10 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:46 CEST | Update | N/A |
| article html file updated | 27 October 2017 09:18 CEST | Update | N/A |
| article html file updated | 31 May 2017 06:15 CEST | Original file | N/A |
| article xml uploaded. | 31 May 2017 06:14 CEST | Original file | https://www.mdpi.com/2076-3387/7/2/18/xml |
| article pdf uploaded. | 31 May 2017 06:14 CEST | Version of Record | https://www.mdpi.com/2076-3387/7/2/18/pdf |
