| article html file updated | 9 February 2020 09:52 CET | Update | https://www.mdpi.com/2076-3387/8/1/7 |
| article html file updated | 1 May 2019 11:41 CEST | Update | N/A |
| article html file updated | 17 April 2019 11:28 CEST | Update | N/A |
| article html file updated | 29 March 2019 06:37 CET | Update | N/A |
| article html file updated | 27 March 2018 15:12 CEST | Update | N/A |
| article html file updated | 15 March 2018 10:44 CET | Original file | N/A |
| article xml uploaded. | 15 March 2018 10:43 CET | Original file | https://www.mdpi.com/2076-3387/8/1/7/xml |
| article pdf uploaded. | 15 March 2018 10:43 CET | Updated version of record | https://www.mdpi.com/2076-3387/8/1/7/pdf |
| article pdf uploaded. | 14 March 2018 16:44 CET | Version of Record | https://www.mdpi.com/2076-3387/8/1/7/pdf-vor |
